| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 8854 |
38.6%
|
| 1 | <2 years | 3125 |
13.6%
|
| 2 | 2 years | 3082 |
13.4%
|
| 3 | 3 years | 2104 |
9.2%
|
| 4 | 4+ years | 5770 |
25.2%
|