| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | 0 | 39 | 10 | 14 | 25 | 39 | 19 | 14 | 23 | 6 | 9 | 32 |
| 2012 | 27 | 40 | 58 | 64 | 66 | 63 | 36 | 84 | 58 | 107 | 122 | 117 |
| 2013 | 182 | 147 | 210 | 158 | 163 | 178 | 243 | 189 | 252 | 178 | 235 | 236 |
| 2014 | 349 | 328 | 503 | 507 | 674 | 458 | 528 | 325 | 432 | 378 | 366 | 451 |
| 2015 | 507 | 547 | 553 | 561 | 587 | 524 | 895 | 887 | 815 | 867 | 740 | 892 |
| 2016 | 975 | 882 | 1162 | 1225 | 1210 | 1165 | 1207 | 1421 | 1841 | 1435 | 1541 | 1509 |
| 2017 | 1492 | 1324 | 1315 | 1492 | 1263 | 1024 | 1151 | 1206 | 1187 | 1295 | 1246 | 1021 |
| 2018 | 1143 | 1243 | 1259 | 977 | 958 | 949 | 800 | 855 | 763 | 865 | 859 | 786 |
| 2019 | 706 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |