| Value | Category | Cases | |
|---|---|---|---|
| 0 | less than one year | 77 |
7.2%
|
| 1 | 86 |
8%
|
|
| 2 | 136 |
12.7%
|
|
| 3 | 147 |
13.7%
|
|
| 4 | 140 |
13%
|
|
| 5 | 126 |
11.7%
|
|
| 6 | 93 |
8.7%
|
|
| 7 | 66 |
6.1%
|
|
| 8 | 60 |
5.6%
|
|
| 9 | 29 |
2.7%
|
|
| 10 | 43 |
4%
|
|
| 11 | 18 |
1.7%
|
|
| 12 | 23 |
2.1%
|
|
| 13 | 9 |
0.8%
|
|
| 14 | 8 |
0.7%
|
|
| 15 | 9 |
0.8%
|
|
| 16 | 2 |
0.2%
|
|
| 17 | 1 |
0.1%
|
|
| 18 | 1 |
0.1%
|
|
| Sysmiss | 11841 |