| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 612 |
61.6%
|
| 1 | 6 months | 19 |
1.9%
|
| 2 | 1 year | 52 |
5.2%
|
| 3 | 2 years | 45 |
4.5%
|
| 4 | 3 years | 55 |
5.5%
|
| 5 | 4 years | 62 |
6.2%
|
| 6 | 5 years | 58 |
5.8%
|
| 7 | 6 years | 17 |
1.7%
|
| 8 | 7 years | 20 |
2%
|
| 9 | 8 years | 16 |
1.6%
|
| 10 | 9 years | 2 |
0.2%
|
| 11 | 10 years | 15 |
1.5%
|
| 12 | More than 10 years | 21 |
2.1%
|
| Sysmiss | 6 |