| Value | Category | Cases | |
|---|---|---|---|
| 0 | 11813 |
91.5%
|
|
| 1 | 463 |
3.6%
|
|
| 2 | 160 |
1.2%
|
|
| 3 | 81 |
0.6%
|
|
| 4 | 43 |
0.3%
|
|
| 5 | 23 |
0.2%
|
|
| 6 | 37 |
0.3%
|
|
| 7 | 8 |
0.1%
|
|
| 8 | 15 |
0.1%
|
|
| 9 | 3 |
0%
|
|
| 10 | 2 |
0%
|
|
| 11 | 2 |
0%
|
|
| 12 | 47 |
0.4%
|
|
| 24 | 7 |
0.1%
|
|
| 36 | 4 |
0%
|
|
| 48 | 2 |
0%
|
|
| 60 | 3 |
0%
|
|
| 120 | 3 |
0%
|
|
| 132 | 2 |
0%
|
|
| 180 | 1 |
0%
|
|
| 995 | within last 4 weeks | 0 |
0%
|
| 996 | before last birth | 0 |
0%
|
| 997 | inconsistent | 196 |
1.5%
|
| 998 | don't know | 0 |
0%
|