| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2497 | 
                                                                 
                                    
                                    42.8%
                                 
                                                             | 
                                                        
                    |
| 1 | 479 | 
                                                                 
                                    
                                    8.2%
                                 
                                                             | 
                                                        
                    |
| 2 | 282 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    |
| 3 | 195 | 
                                                                 
                                    
                                    3.3%
                                 
                                                             | 
                                                        
                    |
| 4 | 125 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    |
| 5 | 85 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 6 | 88 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 7 | 47 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 8 | 49 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 9 | 41 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 10 | 34 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 11 | 20 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 12 | 358 | 
                                                                 
                                    
                                    6.1%
                                 
                                                             | 
                                                        
                    |
| 24 | 161 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| 36 | 77 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 48 | 41 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 60 | 43 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 72 | 32 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 84 | 11 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 96 | 11 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 100 | < 1 day | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 101 | days: 1 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 108 | 12 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 120 | 10 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 132 | 5 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 144 | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 156 | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 168 | 2 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| 180 | 8 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 201 | weeks: 1 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 301 | months: 1 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 401 | years: 1 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 995 | within last 4 weeks | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 996 | before last birth | 456 | 
                                                                 
                                    
                                    7.8%
                                 
                                                             | 
                                                        
                    
| 997 | inconsistent | 664 | 
                                                                 
                                    
                                    11.4%
                                 
                                                             | 
                                                        
                    
| 998 | don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 916 |