| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
0.5%
|
|
| 1 | 2 |
0.3%
|
|
| 2 | 12 |
1.9%
|
|
| 3 | 14 |
2.2%
|
|
| 4 | 28 |
4.4%
|
|
| 5 | 69 |
10.9%
|
|
| 6 | 149 |
23.6%
|
|
| 7 | 69 |
10.9%
|
|
| 8 | 201 |
31.8%
|
|
| 9 | 27 |
4.3%
|
|
| 10 | 48 |
7.6%
|
|
| 11 | 7 |
1.1%
|
|
| 12 | 3 |
0.5%
|
|
| Sysmiss | 2006 |