| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 3607 |
39.8%
|
| 1 | <2 years | 1222 |
13.5%
|
| 2 | 2 years | 1475 |
16.3%
|
| 3 | 3 years | 1090 |
12%
|
| 4 | 4+ years | 1670 |
18.4%
|