| 2011 | 2012 | 2013 | 2014 |
January February March April May June July August September October November December | 176.4286 143.4444 121.8750 100.9412 98.7500 101.2857 127.8333 76.0000 68.4444 123.4118 228.1905 261.7308 | 143.0500 129.9615 110.0556 99.4286 93.6429 93.2857 61.3333 102.4000 89.5833 107.9444 251.7391 247.7727 | 178.4762 115.2105 127.9500 121.3500 99.8333 86.0000 127.8333 79.5000 92.9375 127.5000 197.9048 252.7083 | 172.6957 144.6875 124.3529 86.1111 89.8462 119.1429 86.4286 82.1250 81.5882 150.1176 204.5789 251.2857 |