Oil Prices in 2017: WTI & Brent History and Monthly Averages
WTI average
$50.80
EIA annual average
WTI vs prior year
+17.3%
2016: $43.29
Brent average
$54.13
EIA annual average
Brent vs prior year
+24.0%
2016: $43.64
WTI averaged $50.80 per barrel in 2017, up $7.51 (17.3%) from 2016; that was the highest annual average since 2014.
Monthly average prices in 2017
| Month | WTI avg | WTI high | WTI low | Brent avg | Brent − WTI (matched dates) | WTI (September 2026 $) | Brent (September 2026 $) |
|---|---|---|---|---|---|---|---|
| January | $52.50 | $53.98 | $50.82 | $54.58 | +$2.09 | $72.84 | $75.73 |
| February | $53.47 | $54.48 | $52.19 | $54.87 | +$1.38 | $73.96 | $75.89 |
| March | $49.33 | $53.82 | $47.00 | $51.59 | +$2.26 | $68.18 | $71.30 |
| April | $51.06 | $53.38 | $48.90 | $52.31 | +$1.25 | $70.36 | $72.08 |
| May | $48.48 | $51.12 | $45.55 | $50.33 | +$1.76 | $66.75 | $69.29 |
| June | $45.18 | $48.32 | $42.48 | $46.37 | +$1.19 | $62.15 | $63.78 |
| July | $46.63 | $50.21 | $44.25 | $48.48 | +$1.78 | $64.18 | $66.73 |
| August | $48.04 | $49.60 | $45.96 | $51.70 | +$3.67 | $65.93 | $70.95 |
| September | $49.82 | $52.14 | $47.32 | $56.15 | +$6.51 | $68.01 | $76.65 |
| October | $51.58 | $54.36 | $49.34 | $57.51 | +$5.93 | $70.46 | $78.56 |
| November | $56.64 | $58.94 | $54.32 | $62.71 | +$6.05 | $77.37 | $85.66 |
| December | $57.88 | $60.46 | $55.79 | $64.37 | +$6.58 | $79.11 | $87.98 |
Monthly averages are EIA's published figures. Brent − WTI is the average over dates with both prices published, so it can differ from the difference between the two monthly averages. Inflation-adjusted columns use CPI-U for each month, expressed in September 2026 dollars; “—” means CPI-U for that month is not available.
From $42.48 on Jun 21, 2017, WTI climbed to $60.46 by Dec 29, 2017, a 42% gain. The steepest fall within the year ran from $54.48 on Feb 23, 2017 to $42.48 on Jun 21, 2017, a 22% drop. Between October and November the monthly average rose $5.06, the largest month-to-month change of the year. The price finished the year 15% above its first 2017 close of $52.36.
Brent averaged $54.13, up $10.49 (24.0%) from 2016, with daily prices from $43.98 to $66.80; on 249 matched dates it was on average $3.37 above WTI.
The monthly average was lowest in June ($45.18) and highest in December ($57.88). In September 2026 dollars (CPI-U), the 2017 average is $69.83, higher than 2025's real average by $1.39 (2.0%). The 2010s as a whole averaged $72.42, so 2017 ran below its decade. Of 40 complete years with an EIA annual average, 2017 ranks 18th highest.
2017 summary statistics
| Measure | WTI | Brent | Brent − WTI |
|---|---|---|---|
| Average | $50.80 | $54.13 | +$3.37 |
| Change vs 2016 average | +$7.51 | +$10.49 | +$2.96 |
| Highest daily price | $60.46 Dec 29, 2017 | $66.80 Dec 28, 2017 | — |
| Lowest daily price | $42.48 Jun 21, 2017 | $43.98 Jun 20, 2017 | — |
| Highest daily spread | — | — | +$8.18 Sep 26, 2017 |
| Lowest daily spread | — | — | −$0.64 Feb 28, 2017 |
| First observation | $52.36 Jan 3, 2017 | $55.05 Jan 3, 2017 | — |
| Last observation | $60.46 Dec 29, 2017 | $66.73 Dec 29, 2017 | — |
| Published daily observations | 250 | 256 | 249 matched |
| Average in September 2026 dollars | $69.83 | $74.41 | — |
Daily spot prices in 2017
Show all 257 dates (Jan 3, 2017 – Dec 29, 2017)
| Date | WTI | Brent | Brent − WTI |
|---|---|---|---|
| Jan 3, 2017 | $52.36 | $55.05 | +$2.69 |
| Jan 4, 2017 | $53.26 | $54.57 | +$1.31 |
| Jan 5, 2017 | $53.77 | $54.99 | +$1.22 |
| Jan 6, 2017 | $53.98 | $55.90 | +$1.92 |
| Jan 9, 2017 | $51.95 | $54.39 | +$2.44 |
| Jan 10, 2017 | $50.82 | $53.20 | +$2.38 |
| Jan 11, 2017 | $52.19 | $53.61 | +$1.42 |
| Jan 12, 2017 | $53.01 | $54.51 | +$1.50 |
| Jan 13, 2017 | $52.36 | $54.37 | +$2.01 |
| Jan 16, 2017 | — | $54.30 | — |
| Jan 17, 2017 | $52.45 | $54.68 | +$2.23 |
| Jan 18, 2017 | $51.12 | $53.77 | +$2.65 |
| Jan 19, 2017 | $51.39 | $53.18 | +$1.79 |
| Jan 20, 2017 | $52.33 | $55.04 | +$2.71 |
| Jan 23, 2017 | $52.77 | $54.80 | +$2.03 |
| Jan 24, 2017 | $52.38 | $54.70 | +$2.32 |
| Jan 25, 2017 | $52.14 | $54.34 | +$2.20 |
| Jan 26, 2017 | $53.24 | $55.89 | +$2.65 |
| Jan 27, 2017 | $53.18 | $54.80 | +$1.62 |
| Jan 30, 2017 | $52.63 | $54.77 | +$2.14 |
| Jan 31, 2017 | $52.75 | $55.25 | +$2.50 |
| Feb 1, 2017 | $53.90 | $55.79 | +$1.89 |
| Feb 2, 2017 | $53.55 | $55.94 | +$2.39 |
| Feb 3, 2017 | $53.81 | $55.92 | +$2.11 |
| Feb 6, 2017 | $53.01 | $55.02 | +$2.01 |
| Feb 7, 2017 | $52.19 | $53.79 | +$1.60 |
| Feb 8, 2017 | $52.37 | $54.42 | +$2.05 |
| Feb 9, 2017 | $52.99 | $53.98 | +$0.99 |
| Feb 10, 2017 | $53.84 | $55.20 | +$1.36 |
| Feb 13, 2017 | $52.96 | $54.15 | +$1.19 |
| Feb 14, 2017 | $53.21 | $54.96 | +$1.75 |
| Feb 15, 2017 | $53.11 | $54.57 | +$1.46 |
| Feb 16, 2017 | $53.41 | $54.16 | +$0.75 |
| Feb 17, 2017 | $53.41 | $54.48 | +$1.07 |
| Feb 20, 2017 | — | $55.25 | — |
| Feb 21, 2017 | $54.02 | $56.34 | +$2.32 |
| Feb 22, 2017 | $53.61 | $54.90 | +$1.29 |
| Feb 23, 2017 | $54.48 | $55.82 | +$1.34 |
| Feb 24, 2017 | $53.99 | $54.69 | +$0.70 |
| Feb 27, 2017 | $54.04 | $54.65 | +$0.61 |
| Feb 28, 2017 | $54.00 | $53.36 | −$0.64 |
| Mar 1, 2017 | $53.82 | $55.72 | +$1.90 |
| Mar 2, 2017 | $52.63 | $54.16 | +$1.53 |
| Mar 3, 2017 | $53.33 | $54.12 | +$0.79 |
| Mar 6, 2017 | $53.19 | $54.73 | +$1.54 |
| Mar 7, 2017 | $52.68 | $54.61 | +$1.93 |
| Mar 8, 2017 | $49.83 | $53.30 | +$3.47 |
| Mar 9, 2017 | $48.75 | $50.65 | +$1.90 |
| Mar 10, 2017 | $48.05 | $50.63 | +$2.58 |
| Mar 13, 2017 | $47.95 | $50.10 | +$2.15 |
| Mar 14, 2017 | $47.24 | $49.60 | +$2.36 |
| Mar 15, 2017 | $48.34 | $50.63 | +$2.29 |
| Mar 16, 2017 | $48.30 | $50.56 | +$2.26 |
| Mar 17, 2017 | $48.34 | $50.58 | +$2.24 |
| Mar 20, 2017 | $47.79 | $50.67 | +$2.88 |
| Mar 21, 2017 | $47.02 | $50.14 | +$3.12 |
| Mar 22, 2017 | $47.29 | $49.56 | +$2.27 |
| Mar 23, 2017 | $47.00 | $50.17 | +$3.17 |
| Mar 24, 2017 | $47.30 | $49.97 | +$2.67 |
| Mar 27, 2017 | $47.02 | $50.12 | +$3.10 |
| Mar 28, 2017 | $48.36 | $50.72 | +$2.36 |
| Mar 29, 2017 | $49.47 | $51.36 | +$1.89 |
| Mar 30, 2017 | $50.30 | $52.25 | +$1.95 |
| Mar 31, 2017 | $50.54 | $52.20 | +$1.66 |
| Apr 3, 2017 | $50.25 | $52.04 | +$1.79 |
| Apr 4, 2017 | $50.99 | $53.08 | +$2.09 |
| Apr 5, 2017 | $51.14 | $53.41 | +$2.27 |
| Apr 6, 2017 | $51.69 | $53.62 | +$1.93 |
| Apr 7, 2017 | $52.25 | $54.24 | +$1.99 |
| Apr 10, 2017 | $53.06 | $54.79 | +$1.73 |
| Apr 11, 2017 | $53.38 | $54.73 | +$1.35 |
| Apr 12, 2017 | $53.12 | $54.75 | +$1.63 |
| Apr 13, 2017 | $53.19 | $55.05 | +$1.86 |
| Apr 17, 2017 | $52.62 | $54.79 | +$2.17 |
| Apr 18, 2017 | $52.46 | $52.60 | +$0.14 |
| Apr 19, 2017 | $50.49 | $52.43 | +$1.94 |
| Apr 20, 2017 | $50.26 | $50.66 | +$0.40 |
| Apr 21, 2017 | $49.64 | $49.93 | +$0.29 |
| Apr 24, 2017 | $48.90 | $49.45 | +$0.55 |
| Apr 25, 2017 | $49.22 | $49.37 | +$0.15 |
| Apr 26, 2017 | $49.22 | $49.99 | +$0.77 |
| Apr 27, 2017 | $48.96 | $49.46 | +$0.50 |
| Apr 28, 2017 | $49.31 | $49.46 | +$0.15 |
| May 1, 2017 | $48.83 | $50.41 | +$1.58 |
| May 2, 2017 | $47.65 | $49.31 | +$1.66 |
| May 3, 2017 | $47.79 | $48.82 | +$1.03 |
| May 4, 2017 | $45.55 | $47.53 | +$1.98 |
| May 5, 2017 | $46.23 | $47.45 | +$1.22 |
| May 8, 2017 | $46.46 | $46.61 | +$0.15 |
| May 9, 2017 | $45.84 | $47.06 | +$1.22 |
| May 10, 2017 | $47.28 | $48.09 | +$0.81 |
| May 11, 2017 | $47.81 | $49.18 | +$1.37 |
| May 12, 2017 | $47.83 | $49.08 | +$1.25 |
| May 15, 2017 | $48.86 | $51.29 | +$2.43 |
| May 16, 2017 | $48.64 | $51.21 | +$2.57 |
| May 17, 2017 | $49.04 | $51.76 | +$2.72 |
| May 18, 2017 | $49.36 | $51.71 | +$2.35 |
| May 19, 2017 | $50.32 | $52.78 | +$2.46 |
| May 22, 2017 | $50.81 | $53.35 | +$2.54 |
| May 23, 2017 | $51.12 | $53.19 | +$2.07 |
| May 24, 2017 | $50.99 | $53.29 | +$2.30 |
| May 25, 2017 | $48.57 | $52.25 | +$3.68 |
| May 26, 2017 | $49.58 | $50.84 | +$1.26 |
| May 29, 2017 | — | $52.25 | — |
| May 30, 2017 | $49.63 | $50.65 | +$1.02 |
| May 31, 2017 | $48.29 | $49.40 | +$1.11 |
| Jun 1, 2017 | $48.32 | $50.41 | +$2.09 |
| Jun 2, 2017 | $47.68 | $48.46 | +$0.78 |
| Jun 5, 2017 | $47.40 | $48.25 | +$0.85 |
| Jun 6, 2017 | $48.13 | $48.11 | −$0.02 |
| Jun 7, 2017 | $45.80 | $47.08 | +$1.28 |
| Jun 8, 2017 | $45.68 | $46.30 | +$0.62 |
| Jun 9, 2017 | $45.82 | $46.64 | +$0.82 |
| Jun 12, 2017 | $46.10 | $47.18 | +$1.08 |
| Jun 13, 2017 | $46.41 | $46.95 | +$0.54 |
| Jun 14, 2017 | $44.79 | $45.47 | +$0.68 |
| Jun 15, 2017 | $44.47 | $45.61 | +$1.14 |
| Jun 16, 2017 | $44.73 | $45.70 | +$0.97 |
| Jun 19, 2017 | $44.24 | $45.93 | +$1.69 |
| Jun 20, 2017 | $43.34 | $43.98 | +$0.64 |
| Jun 21, 2017 | $42.48 | $44.62 | +$2.14 |
| Jun 22, 2017 | $42.53 | $44.46 | +$1.93 |
| Jun 23, 2017 | $42.86 | $44.14 | +$1.28 |
| Jun 26, 2017 | $43.24 | $44.09 | +$0.85 |
| Jun 27, 2017 | $44.25 | $46.17 | +$1.92 |
| Jun 28, 2017 | $44.74 | $46.45 | +$1.71 |
| Jun 29, 2017 | $44.88 | $47.02 | +$2.14 |
| Jun 30, 2017 | $46.02 | $47.08 | +$1.06 |
| Jul 3, 2017 | — | $49.13 | — |
| Jul 4, 2017 | — | $49.15 | — |
| Jul 5, 2017 | $45.11 | $47.58 | +$2.47 |
| Jul 6, 2017 | $45.52 | $48.53 | +$3.01 |
| Jul 7, 2017 | $44.25 | $46.47 | +$2.22 |
| Jul 10, 2017 | $44.40 | $46.57 | +$2.17 |
| Jul 11, 2017 | $45.06 | $46.68 | +$1.62 |
| Jul 12, 2017 | $45.48 | $46.73 | +$1.25 |
| Jul 13, 2017 | $46.06 | $47.65 | +$1.59 |
| Jul 14, 2017 | $46.53 | $47.89 | +$1.36 |
| Jul 17, 2017 | $46.02 | $47.66 | +$1.64 |
| Jul 18, 2017 | $46.40 | $47.92 | +$1.52 |
| Jul 19, 2017 | $47.10 | $48.34 | +$1.24 |
| Jul 20, 2017 | $46.73 | $48.54 | +$1.81 |
| Jul 21, 2017 | $45.78 | $47.47 | +$1.69 |
| Jul 24, 2017 | $46.21 | $47.81 | +$1.60 |
| Jul 25, 2017 | $47.77 | $49.19 | +$1.42 |
| Jul 26, 2017 | $48.58 | $50.08 | +$1.50 |
| Jul 27, 2017 | $49.05 | $50.67 | +$1.62 |
| Jul 28, 2017 | $49.72 | $52.00 | +$2.28 |
| Jul 31, 2017 | $50.21 | $51.99 | +$1.78 |
| Aug 1, 2017 | $49.19 | $50.77 | +$1.58 |
| Aug 2, 2017 | $49.60 | $52.09 | +$2.49 |
| Aug 3, 2017 | $49.03 | $52.88 | +$3.85 |
| Aug 4, 2017 | $49.57 | $52.48 | +$2.91 |
| Aug 7, 2017 | $49.37 | $51.42 | +$2.05 |
| Aug 8, 2017 | $49.07 | $52.18 | +$3.11 |
| Aug 9, 2017 | $49.59 | $52.16 | +$2.57 |
| Aug 10, 2017 | $48.54 | $52.59 | +$4.05 |
| Aug 11, 2017 | $48.81 | $51.47 | +$2.66 |
| Aug 14, 2017 | $47.59 | $51.29 | +$3.70 |
| Aug 15, 2017 | $47.57 | $49.90 | +$2.33 |
| Aug 16, 2017 | $46.80 | $50.39 | +$3.59 |
| Aug 17, 2017 | $47.07 | $50.37 | +$3.30 |
| Aug 18, 2017 | $48.59 | $50.96 | +$2.37 |
| Aug 21, 2017 | $47.39 | $51.94 | +$4.55 |
| Aug 22, 2017 | $47.65 | $52.29 | +$4.64 |
| Aug 23, 2017 | $48.45 | $52.31 | +$3.86 |
| Aug 24, 2017 | $47.24 | $51.73 | +$4.49 |
| Aug 25, 2017 | $47.65 | $51.87 | +$4.22 |
| Aug 28, 2017 | $46.40 | $51.87 | +$5.47 |
| Aug 29, 2017 | $46.46 | $51.64 | +$5.18 |
| Aug 30, 2017 | $45.96 | $51.91 | +$5.95 |
| Aug 31, 2017 | $47.26 | $52.69 | +$5.43 |
| Sep 1, 2017 | $47.32 | $53.15 | +$5.83 |
| Sep 4, 2017 | — | $52.60 | — |
| Sep 5, 2017 | $48.63 | $53.63 | +$5.00 |
| Sep 6, 2017 | $49.13 | $54.48 | +$5.35 |
| Sep 7, 2017 | $49.10 | $54.16 | +$5.06 |
| Sep 8, 2017 | $47.44 | $54.55 | +$7.11 |
| Sep 11, 2017 | $48.06 | $54.20 | +$6.14 |
| Sep 12, 2017 | $48.21 | $55.06 | +$6.85 |
| Sep 13, 2017 | $49.30 | $55.52 | +$6.22 |
| Sep 14, 2017 | $49.86 | $56.76 | +$6.90 |
| Sep 15, 2017 | $49.90 | $56.18 | +$6.28 |
| Sep 18, 2017 | $49.88 | $55.50 | +$5.62 |
| Sep 19, 2017 | $49.54 | $56.58 | +$7.04 |
| Sep 20, 2017 | $50.29 | $57.20 | +$6.91 |
| Sep 21, 2017 | $50.58 | $57.73 | +$7.15 |
| Sep 22, 2017 | $50.33 | $58.16 | +$7.83 |
| Sep 25, 2017 | $51.85 | $59.42 | +$7.57 |
| Sep 26, 2017 | $51.59 | $59.77 | +$8.18 |
| Sep 27, 2017 | $52.14 | $58.74 | +$6.60 |
| Sep 28, 2017 | $51.62 | $58.80 | +$7.18 |
| Sep 29, 2017 | $51.67 | $57.02 | +$5.35 |
| Oct 2, 2017 | $50.59 | $55.67 | +$5.08 |
| Oct 3, 2017 | $50.44 | $56.12 | +$5.68 |
| Oct 4, 2017 | $50.00 | $56.00 | +$6.00 |
| Oct 5, 2017 | $50.79 | $57.09 | +$6.30 |
| Oct 6, 2017 | $49.34 | $55.50 | +$6.16 |
| Oct 9, 2017 | $49.58 | $55.29 | +$5.71 |
| Oct 10, 2017 | $50.93 | $56.62 | +$5.69 |
| Oct 11, 2017 | $51.30 | $56.13 | +$4.83 |
| Oct 12, 2017 | $50.61 | $56.13 | +$5.52 |
| Oct 13, 2017 | $51.43 | $56.86 | +$5.43 |
| Oct 16, 2017 | $51.86 | $57.49 | +$5.63 |
| Oct 17, 2017 | $51.87 | $57.63 | +$5.76 |
| Oct 18, 2017 | $52.05 | $58.05 | +$6.00 |
| Oct 19, 2017 | $51.29 | $57.82 | +$6.53 |
| Oct 20, 2017 | $51.63 | $57.89 | +$6.26 |
| Oct 23, 2017 | $51.91 | $57.69 | +$5.78 |
| Oct 24, 2017 | $52.32 | $57.84 | +$5.52 |
| Oct 25, 2017 | $51.97 | $58.45 | +$6.48 |
| Oct 26, 2017 | $52.41 | $58.75 | +$6.34 |
| Oct 27, 2017 | $53.92 | $60.15 | +$6.23 |
| Oct 30, 2017 | $54.11 | $60.65 | +$6.54 |
| Oct 31, 2017 | $54.36 | $61.35 | +$6.99 |
| Nov 1, 2017 | $54.32 | $60.98 | +$6.66 |
| Nov 2, 2017 | $54.55 | $60.79 | +$6.24 |
| Nov 3, 2017 | $55.63 | $61.42 | +$5.79 |
| Nov 6, 2017 | $57.34 | $64.27 | +$6.93 |
| Nov 7, 2017 | $57.19 | $64.36 | +$7.17 |
| Nov 8, 2017 | $56.82 | $63.96 | +$7.14 |
| Nov 9, 2017 | $57.16 | $64.49 | +$7.33 |
| Nov 10, 2017 | $56.75 | $64.35 | +$7.60 |
| Nov 13, 2017 | $56.77 | $62.94 | +$6.17 |
| Nov 14, 2017 | $55.67 | $60.91 | +$5.24 |
| Nov 15, 2017 | $55.28 | $61.25 | +$5.97 |
| Nov 16, 2017 | $55.14 | $61.18 | +$6.04 |
| Nov 17, 2017 | $56.21 | $61.34 | +$5.13 |
| Nov 20, 2017 | $56.21 | $61.34 | +$5.13 |
| Nov 21, 2017 | $56.84 | $62.28 | +$5.44 |
| Nov 22, 2017 | $57.88 | $62.92 | +$5.04 |
| Nov 23, 2017 | — | $63.27 | — |
| Nov 24, 2017 | $58.94 | $63.58 | +$4.64 |
| Nov 27, 2017 | $58.10 | $63.25 | +$5.15 |
| Nov 28, 2017 | $57.96 | $63.56 | +$5.60 |
| Nov 29, 2017 | $57.25 | $63.74 | +$6.49 |
| Nov 30, 2017 | $57.40 | $63.53 | +$6.13 |
| Dec 1, 2017 | $58.35 | $64.57 | +$6.22 |
| Dec 4, 2017 | $57.48 | $63.45 | +$5.97 |
| Dec 5, 2017 | $57.66 | $63.45 | +$5.79 |
| Dec 6, 2017 | $55.79 | $62.25 | +$6.46 |
| Dec 7, 2017 | $56.50 | $62.37 | +$5.87 |
| Dec 8, 2017 | $57.15 | $63.86 | +$6.71 |
| Dec 11, 2017 | $57.84 | $65.62 | +$7.78 |
| Dec 12, 2017 | $57.12 | $64.96 | +$7.84 |
| Dec 13, 2017 | $56.59 | $63.66 | +$7.07 |
| Dec 14, 2017 | $57.00 | $63.72 | +$6.72 |
| Dec 15, 2017 | $57.29 | $63.81 | +$6.52 |
| Dec 18, 2017 | $57.17 | $64.45 | +$7.28 |
| Dec 19, 2017 | $57.49 | $63.69 | +$6.20 |
| Dec 20, 2017 | $58.09 | $64.43 | +$6.34 |
| Dec 21, 2017 | $58.34 | $64.64 | +$6.30 |
| Dec 22, 2017 | $58.25 | $64.61 | +$6.36 |
| Dec 26, 2017 | $59.55 | — | — |
| Dec 27, 2017 | $59.67 | $66.03 | +$6.36 |
| Dec 28, 2017 | $59.84 | $66.80 | +$6.96 |
| Dec 29, 2017 | $60.46 | $66.73 | +$6.27 |
“—” means EIA published no price for that benchmark on that date.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB | $/bbl | Jan 3, 2017 – Dec 29, 2017 | Dec 29, 2017 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB | $/bbl | Jan 3, 2017 – Dec 29, 2017 | Dec 29, 2017 |
| U.S. Bureau of Labor Statistics | CUUR0000SA0 — CPI-U, all items, NSA | index, 1982–84=100 | monthly and annual average | September 2026 |
Inflation adjustment: real = nominal × CPI-U(September 2026) ÷ CPI-U(period). Annual figures use the BLS annual average CPI-U; a year without one uses the mean of the months published so far.
Last updated: Oct 21, 2026, 5:27 PM CDT. Raw values are shown in source units; any conversion is labeled. See methodology and data sources.
Download:2017 daily prices (CSV)