| Value | Category | Cases | |
|---|---|---|---|
| 1 | 3 |
0.2%
|
|
| 2 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 8 | 2 |
0.2%
|
|
| 2007 | 1 |
0.1%
|
|
| 2012 | 18 |
1.5%
|
|
| 2013 | 1194 |
97.9%
|
|
| Sysmiss | 2538 |