| قيمة | فئة | حالات | |
|---|---|---|---|
| 0 | Less than one year | 438 |
0.9%
|
| 1 | 1273 |
2.5%
|
|
| 2 | 5170 |
10.2%
|
|
| 3 | 28724 |
56.9%
|
|
| 4 | 9682 |
19.2%
|
|
| 5 | 2140 |
4.2%
|
|
| 6 | 3082 |
6.1%
|
|
| 8 | Don't know | 0 |
0%
|
| Sysmiss | 8981 |