| 2011 | 2012 | 2013 | 2014 |
January February March April May June July August September October November December | 388.2671 386.9302 384.7967 382.8482 384.6600 376.1516 376.1521 380.1761 378.7995 377.4204 383.4106 388.8309 | 389.7453 386.7494 384.8546 387.1007 385.4377 382.8430 385.2328 379.6688 381.1844 379.7802 387.5586 391.1420 | 394.1395 393.6935 391.1232 390.5237 387.5442 385.2102 382.4967 384.8706 380.6630 384.0695 389.4768 393.5256 | 393.8462 394.1328 391.8489 390.1177 389.6226 391.4982 392.9677 391.7415 389.4396 391.4127 393.5066 396.0969 |