| Monthly Summary | |||||
| Year | Mean | Difference | |||
| 2009 | 2010 | 2009 | 2010 | ||
| January | 4134 | 5434 | 4824 | -690 | 609 |
| February | 11175 | 14684 | 13039 | -1864 | 1645 |
| March | 19990 | 26909 | 23029 | -3039 | 3881 |
| April | 28971 | 37125 | 32006 | -3035 | 5119 |
| May | 41004 | 50723 | 44105 | -3101 | 6618 |
| June | 51249 | 61213 | 53888 | -2639 | 7325 |
| July | 64873 | 74596 | 67130 | -2257 | 7467 |
| August | 76200 | 85971 | 78545 | -2345 | 7425 |
| September | 84975 | 94052 | 86759 | -1784 | 7293 |
| October | 99468 | 108248 | 100532 | -1064 | 7716 |
| November | 106969 | 115670 | 107438 | -468 | 8233 |
| December | 121544 | 130433 | 121064 | 480 | 9368 |