| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 5034 |
36.2%
|
| 1 | <2 years | 2281 |
16.4%
|
| 2 | 2 years | 2308 |
16.6%
|
| 3 | 3 years | 1320 |
9.5%
|
| 4 | 4+ years | 2947 |
21.2%
|