| Value | Category | Cases | |
|---|---|---|---|
| 0 | not had intercourse | 2804 | 
                                    
                                    34%
                                 | 
| 12 | 2 | 
                                    
                                    0%
                                 | |
| 13 | 3 | 
                                    
                                    0%
                                 | |
| 14 | 3 | 
                                    
                                    0%
                                 | |
| 15 | 69 | 
                                    
                                    0.8%
                                 | |
| 16 | 140 | 
                                    
                                    1.7%
                                 | |
| 17 | 275 | 
                                    
                                    3.3%
                                 | |
| 18 | 506 | 
                                    
                                    6.1%
                                 | |
| 19 | 587 | 
                                    
                                    7.1%
                                 | |
| 20 | 715 | 
                                    
                                    8.7%
                                 | |
| 21 | 605 | 
                                    
                                    7.3%
                                 | |
| 22 | 546 | 
                                    
                                    6.6%
                                 | |
| 23 | 456 | 
                                    
                                    5.5%
                                 | |
| 24 | 324 | 
                                    
                                    3.9%
                                 | |
| 25 | 357 | 
                                    
                                    4.3%
                                 | |
| 26 | 209 | 
                                    
                                    2.5%
                                 | |
| 27 | 149 | 
                                    
                                    1.8%
                                 | |
| 28 | 105 | 
                                    
                                    1.3%
                                 | |
| 29 | 75 | 
                                    
                                    0.9%
                                 | |
| 30 | 60 | 
                                    
                                    0.7%
                                 | |
| 31 | 31 | 
                                    
                                    0.4%
                                 | |
| 32 | 10 | 
                                    
                                    0.1%
                                 | |
| 33 | 23 | 
                                    
                                    0.3%
                                 | |
| 34 | 3 | 
                                    
                                    0%
                                 | |
| 35 | 6 | 
                                    
                                    0.1%
                                 | |
| 36 | 7 | 
                                    
                                    0.1%
                                 | |
| 37 | 3 | 
                                    
                                    0%
                                 | |
| 38 | 6 | 
                                    
                                    0.1%
                                 | |
| 39 | 2 | 
                                    
                                    0%
                                 | |
| 40 | 1 | 
                                    
                                    0%
                                 | |
| 41 | 1 | 
                                    
                                    0%
                                 | |
| 97 | inconsistent | 151 | 
                                    
                                    1.8%
                                 | 
| 98 | don't know | 0 | 
                                    
                                    0%
                                 | 
| 99 | 5 | 
                                    
                                    0.1%
                                 |