| Value | Category | Cases | |
|---|---|---|---|
| 1 | Before September 2012 | 510 |
35.2%
|
| 2 | October 2012 | 199 |
13.8%
|
| 3 | November 2012 | 200 |
13.8%
|
| 4 | December 2012 | 288 |
19.9%
|
| 5 | January 2013 | 199 |
13.8%
|
| 6 | February 2013 | 43 |
3%
|
| 7 | March 2013 | 6 |
0.4%
|
| 8 | April 2013 | 2 |
0.1%
|
| Sysmiss | 28789 |