| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 7 | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 |
| 8 | 5 | 5 | 4 | 2 | 0 | 0 | 0 | 1 | 3 | 7 | 4 | 3 |
| 9 | 9 | 8 | 5 | 4 | 1 | 3 | 2 | 1 | 6 | 8 | 8 | 4 |
| 10 | 10 | 9 | 4 | 5 | 4 | 2 | 5 | 2 | 8 | 10 | 9 | 10 |
| 11 | 11 | 6 | 4 | 4 | 5 | 5 | 5 | 5 | 9 | 9 | 9 | 10 |
| 12 | 10 | 5 | 5 | 5 | 4 | 5 | 6 | 5 | 9 | 9 | 7 | 5 |
| 13 | 7 | 2 | 2 | 4 | 4 | 1 | 4 | 8 | 9 | 9 | 6 | 3 |
| 14 | 1 | 2 | 1 | 2 | 1 | 1 | 2 | 8 | 8 | 4 | 4 | 7 |
| 15 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 5 | 3 | 3 | 2 | 1 |
| 16 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 1 | 1 | 0 |
| 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 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 | 56 | 41 | 29 | 26 | 19 | 18 | 26 | 36 | 56 | 64 | 53 | 49 |