| Value | Category | Cases | |
|---|---|---|---|
| 1 | September, 2010 | 5 |
3.4%
|
| 2 | October, 2010 | 5 |
3.4%
|
| 3 | November, 2010 | 9 |
6.1%
|
| 4 | December, 2010 | 5 |
3.4%
|
| 5 | January, 2011 | 16 |
10.9%
|
| 6 | February, 2011 | 40 |
27.2%
|
| 7 | March, 2011 | 67 |
45.6%
|
| 8 | April, 2011 | 0 |
0%
|
| Sysmiss | 6137 |