| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 1 year. | 19 |
9.6%
|
| 1 | 1 | 18 |
9.1%
|
| 2 | 2 | 18 |
9.1%
|
| 3 | 3 | 16 |
8.1%
|
| 4 | 4 | 15 |
7.6%
|
| 5 | 5 | 15 |
7.6%
|
| 6 | 6 | 3 |
1.5%
|
| 7 | 7 | 1 |
0.5%
|
| 8 | 8 | 3 |
1.5%
|
| 9 | 9 | 0 |
0%
|
| 10 | 10 | 2 |
1%
|
| 11 | 11 | 2 |
1%
|
| 12 | 12 | 3 |
1.5%
|
| 13 | 13 | 0 |
0%
|
| 14 | 14 | 2 |
1%
|
| 95 | ALWAYS | 78 |
39.6%
|
| 96 | VISITOR | 2 |
1%
|
| 99 | I DON'T KNOW | 0 |
0%
|
| Sysmiss | 4 |