| Value | Category | Cases | |
|---|---|---|---|
| 0 | First birth | 2417 |
49.5%
|
| 1 | <2 years | 516 |
10.6%
|
| 2 | 2 years | 626 |
12.8%
|
| 3 | 3 years | 455 |
9.3%
|
| 4 | 4+ years | 873 |
17.9%
|