| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3582 |
23.5%
|
|
| 1 | < 2 years | 6202 |
40.6%
|
| 2 | 2 years | 3013 |
19.7%
|
| 3 | 3 years | 1124 |
7.4%
|
| 4 | 4+ years | 1344 |
8.8%
|