| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | Less than one year | 721 |
1.5%
|
| 1 | 1954 |
4.1%
|
|
| 2 | 5130 |
10.9%
|
|
| 3 | 27388 |
58%
|
|
| 4 | 8162 |
17.3%
|
|
| 5 | 1851 |
3.9%
|
|
| 6 | 2035 |
4.3%
|
|
| 7 | 20 |
0%
|
|
| Sysmiss | 12229 |