| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2862 |
94.9%
|
|
| 1 | 41 |
1.4%
|
|
| 2 | 12 |
0.4%
|
|
| 3 | 9 |
0.3%
|
|
| 4 | 3 |
0.1%
|
|
| 5 | 1 |
0%
|
|
| 8 | 2 |
0.1%
|
|
| 10 | 1 |
0%
|
|
| 12 | 5 |
0.2%
|
|
| 24 | 3 |
0.1%
|
|
| 36 | 2 |
0.1%
|
|
| 60 | 2 |
0.1%
|
|
| 120 | 1 |
0%
|
|
| 995 | within last 4 weeks | 0 |
0%
|
| 996 | before last birth | 18 |
0.6%
|
| 997 | inconsistent | 55 |
1.8%
|
| 998 | don't know | 0 |
0%
|