| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 971 |
26.9%
|
| 1 | <2 years | 925 |
25.7%
|
| 2 | 2 years | 795 |
22.1%
|
| 3 | 3 years | 416 |
11.5%
|
| 4 | 4+ years | 498 |
13.8%
|