| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 2746 |
32.7%
|
| 1 | <2 years | 1664 |
19.8%
|
| 2 | 2 years | 1500 |
17.9%
|
| 3 | 3 years | 865 |
10.3%
|
| 4 | 4+ years | 1627 |
19.4%
|