| Value | Category | Cases | |
|---|---|---|---|
| 1 | Jan | 1 |
3.3%
|
| 2 | Feb | 1 |
3.3%
|
| 3 | Mar | 3 |
10%
|
| 4 | Apr | 3 |
10%
|
| 5 | May | 2 |
6.7%
|
| 6 | Jun | 5 |
16.7%
|
| 7 | Jul | 2 |
6.7%
|
| 8 | Aug | 4 |
13.3%
|
| 9 | Sep | 1 |
3.3%
|
| 10 | Oct | 0 |
0%
|
| 11 | Nov | 2 |
6.7%
|
| 12 | Dec | 2 |
6.7%
|
| 13 | Never | 4 |
13.3%
|
| Sysmiss | 3946 |