| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 6679 |
26.2%
|
| 1 | <2 years | 7457 |
29.3%
|
| 2 | 2 years | 5490 |
21.5%
|
| 3 | 3 years | 2605 |
10.2%
|
| 4 | 4+ years | 3251 |
12.8%
|