| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2001 | 188.00 | 170.60 | 212.80 | 212.00 | 205.40 | 217.30 | 221.70 | 237.30 | 248.40 | 246.20 | 235.70 | 341.35 |
2002 | 247.60 | 206.10 | 264.40 | 282.70 | 285.60 | 298.80 | 304.10 | 328.00 | 337.50 | 319.30 | 335.70 | 429.60 |
2003 | 342.22 | 273.50 | 368.30 | 372.41 | 376.31 | 387.24 | 393.87 | 433.13 | 427.12 | 438.42 | 439.30 | 558.23 |
2004 | 421.93 | 384.98 | 458.75 | 481.79 | 486.86 | 504.25 | 506.00 | 532.91 | 549.77 | 550.45 | 542.98 | 690.97 |
2005 | 573.31 | 444.05 | 560.81 | 607.17 | 611.67 | 608.76 | 637.03 | 661.55 | 665.95 | 662.54 | 660.73 | 796.22 |
2006 | 688.57 | 539.89 | 704.18 | 736.49 | 740.39 | 754.26 | 782.30 | 800.83 | 833.25 | 827.14 | 820.87 | 1006.68 |
2007 | 849.29 | 763.35 | 803.57 | 914.21 | 912.00 | 949.21 | 943.87 | 980.31 | 1008.06 | 985.90 | 989.29 | 1203.08 |
2008 | 1044.06 | 839.98 | 1026.67 | 1050.99 | 1066.87 | 1099.57 | 1090.40 | 1094.48 | 1074.55 | 1071.08 | 1041.43 | 1221.84 |
2009 | 899.13 | 706.02 | 942.24 | 935.87 | 1020.49 | 1003.30 | 1056.41 | 1088.87 | 1107.10 | 1078.11 | 1085.23 | 1129.78 |
2010 | 1135.53 | 947.81 | 1109.75 | 1162.85 | 1243.92 | 1226.30 | 1272.42 | 1312.95 | 1273.17 | 1222.32 | 1309.26 | 1315.07 |
2011 | 1350.47 | 995.02 | 1277.93 | 1327.62 | 1383.14 | 1376.16 | 1441.20 | 1445.78 | 1430.23 | 1386.43 | 1397.27 | 1457.04 |
2012 | 1363.43 | 1193.46 | 1408.47 | 1439.43 | 1512.28 | 1499.85 | 1510.47 | 1511.64 | 1587.65 | 1508.22 | 1527.95 | 1598.28 |
2013 | 1549.99 | 1217.96 | 1529.03 | 1573.71 | 1613.47 | 1604.09 | 1649.50 | 1638.52 | 1626.12 | 1594.87 | 1638.64 | 1674.24 |
2014 | 1656.49 | 1277.11 | 1632.11 | 1675.38 | 1681.50 | 1696.19 | 1704.64 | 1756.38 | 1725.95 | 1737.74 | 1755.81 | 1777.93 |
2015 | 1784.05 | 1432.45 | 1674.14 | 1762.47 | 1793.49 | 1780.36 | 1792.72 | 1789.88 | 1776.54 | 1744.46 | 1788.84 | 1789.68 |
2016 | 1808.23 | 1427.28 | 1760.20 | 1816.55 | 1838.34 | 1846.39 | 1881.09 | 1911.93 | 1857.41 | 1847.10 | 1879.58 | 1834.95 |
2017 | 1858.99 | 1537.96 |
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