| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| January | 40 | 67 | 85 | 78 | 99 | 75 | 75 | 69 |
| February | 58 | 53 | 84 | 68 | 56 | 64 | 66 | 75 |
| March | 63 | 46 | 63 | 53 | 69 | 78 | 89 | 77 |
| April | 49 | 61 | 53 | 58 | 68 | 60 | 65 | 87 |
| May | 67 | 47 | 55 | 71 | 51 | 57 | 69 | 89 |
| June | 65 | 57 | 48 | 76 | 85 | 74 | 69 | 76 |
| July | 66 | 81 | 60 | 88 | 79 | 85 | 87 | 77 |
| August | 64 | 51 | 49 | 66 | 61 | 86 | 68 | 67 |
| September | 35 | 62 | 61 | 48 | 65 | 75 | 71 | 73 |
| October | 62 | 78 | 63 | 68 | 80 | 79 | 68 | 88 |
| November | 57 | 50 | 56 | 64 | 83 | 73 | 68 | 68 |
| December | 48 | 59 | 69 | 49 | 71 | 66 | 79 | 63 |
| Total | 674 | 712 | 746 | 787 | 867 | 872 | 874 | 909 |