| Time (h) | Aug. 2013 | Sep. 2013 | Oct. 2013 | Nov. 2013 | Dec. 2013 | Jan. 2014 | Feb. 2014 | Mar. 2014 | Apr. 2014 | May 2014 | Jun. 2014 | Jul. 2014 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 4 |
| 6 | 6 | 2 | 4 | 0 | 0 | 0 | 1 | 3 | 2 | 9 | 7 | 11 |
| 7 | 24 | 14 | 16 | 6 | 2 | 1 | 5 | 9 | 7 | 19 | 16 | 23 |
| 8 | 36 | 33 | 29 | 18 | 10 | 14 | 15 | 19 | 23 | 42 | 26 | 24 |
| 9 | 50 | 47 | 33 | 25 | 15 | 28 | 22 | 17 | 36 | 48 | 46 | 29 |
| 10 | 57 | 49 | 28 | 30 | 28 | 24 | 37 | 21 | 47 | 54 | 49 | 54 |
| 11 | 61 | 37 | 29 | 29 | 35 | 35 | 35 | 36 | 53 | 51 | 52 | 58 |
| 12 | 59 | 34 | 33 | 30 | 31 | 36 | 40 | 48 | 52 | 49 | 43 | 31 |
| 13 | 42 | 21 | 18 | 28 | 27 | 18 | 29 | 51 | 52 | 53 | 39 | 21 |
| 14 | 15 | 17 | 12 | 19 | 15 | 19 | 21 | 36 | 47 | 28 | 26 | 44 |
| 15 | 3 | 16 | 5 | 9 | 5 | 15 | 20 | 29 | 24 | 23 | 18 | 16 |
| 16 | 4 | 16 | 2 | 1 | 1 | 4 | 8 | 11 | 13 | 15 | 10 | 11 |
| 17 | 2 | 3 | 0 | 0 | 0 | 0 | 2 | 2 | 4 | 7 | 4 | 8 |
| 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 362 | 291 | 210 | 197 | 170 | 194 | 235 | 284 | 360 | 400 | 340 | 337 |