| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | 100 | |||||||||||
| 2012 | 902 | 919 | 1128 | 874 | 1016 | 948 | 784 | 784 | 750 | 530 | 534 | 444 |
| 2011 | 806 | 843 | 1171 | 908 | 1079 | 1007 | 755 | 969 | 961 | 474 | 826 | 774 |
| 2010 | 953 | 947 | 1197 | 1102 | 1075 | 1193 | 930 | 1036 | 1078 | 782 | 951 | 909 |
| 2009 | 868 | 897 | 1150 | 933 | 920 | 1090 | 987 | 927 | 1160 | 767 | 873 | 928 |
| 2008 | 668 | 703 | 818 | 724 | 684 | 707 | 727 | 686 | 695 | 614 | 681 | 703 |