| Value | Category | Cases | |
|---|---|---|---|
| 0 | not had intercourse | 0 | 
                                    
                                    0%
                                 | 
| 8 | 9 | 
                                    
                                    0.1%
                                 | |
| 9 | 4 | 
                                    
                                    0%
                                 | |
| 10 | 43 | 
                                    
                                    0.3%
                                 | |
| 11 | 29 | 
                                    
                                    0.2%
                                 | |
| 12 | 147 | 
                                    
                                    1%
                                 | |
| 13 | 266 | 
                                    
                                    1.8%
                                 | |
| 14 | 596 | 
                                    
                                    4%
                                 | |
| 15 | 1507 | 
                                    
                                    10.2%
                                 | |
| 16 | 2128 | 
                                    
                                    14.5%
                                 | |
| 17 | 1590 | 
                                    
                                    10.8%
                                 | |
| 18 | 2376 | 
                                    
                                    16.1%
                                 | |
| 19 | 1318 | 
                                    
                                    9%
                                 | |
| 20 | 1494 | 
                                    
                                    10.2%
                                 | |
| 21 | 697 | 
                                    
                                    4.7%
                                 | |
| 22 | 471 | 
                                    
                                    3.2%
                                 | |
| 23 | 261 | 
                                    
                                    1.8%
                                 | |
| 24 | 261 | 
                                    
                                    1.8%
                                 | |
| 25 | 220 | 
                                    
                                    1.5%
                                 | |
| 26 | 96 | 
                                    
                                    0.7%
                                 | |
| 27 | 70 | 
                                    
                                    0.5%
                                 | |
| 28 | 86 | 
                                    
                                    0.6%
                                 | |
| 29 | 63 | 
                                    
                                    0.4%
                                 | |
| 30 | 34 | 
                                    
                                    0.2%
                                 | |
| 31 | 10 | 
                                    
                                    0.1%
                                 | |
| 32 | 11 | 
                                    
                                    0.1%
                                 | |
| 33 | 7 | 
                                    
                                    0%
                                 | |
| 34 | 9 | 
                                    
                                    0.1%
                                 | |
| 35 | 2 | 
                                    
                                    0%
                                 | |
| 36 | 5 | 
                                    
                                    0%
                                 | |
| 37 | 3 | 
                                    
                                    0%
                                 | |
| 38 | 4 | 
                                    
                                    0%
                                 | |
| 39 | 5 | 
                                    
                                    0%
                                 | |
| 41 | 1 | 
                                    
                                    0%
                                 | |
| 46 | 3 | 
                                    
                                    0%
                                 | |
| 96 | at first union | 705 | 
                                    
                                    4.8%
                                 | 
| 97 | inconsistent | 10 | 
                                    
                                    0.1%
                                 | 
| 98 | don't know | 178 | 
                                    
                                    1.2%
                                 | 
| Sysmiss | 227 |