| Value | Category | Cases | |
|---|---|---|---|
| 0 | 59 | 
                                    
                                    11.8%
                                 | |
| 2 | 2 | 
                                    
                                    0.4%
                                 | |
| 3 | 14 | 
                                    
                                    2.8%
                                 | |
| 4 | 14 | 
                                    
                                    2.8%
                                 | |
| 5 | 3 | 
                                    
                                    0.6%
                                 | |
| 6 | 8 | 
                                    
                                    1.6%
                                 | |
| 7 | 2 | 
                                    
                                    0.4%
                                 | |
| 8 | 16 | 
                                    
                                    3.2%
                                 | |
| 9 | 14 | 
                                    
                                    2.8%
                                 | |
| 10 | 18 | 
                                    
                                    3.6%
                                 | |
| 11 | 1 | 
                                    
                                    0.2%
                                 | |
| 12 | 43 | 
                                    
                                    8.6%
                                 | |
| 14 | 7 | 
                                    
                                    1.4%
                                 | |
| 15 | 128 | 
                                    
                                    25.7%
                                 | |
| 16 | 13 | 
                                    
                                    2.6%
                                 | |
| 17 | 1 | 
                                    
                                    0.2%
                                 | |
| 18 | 3 | 
                                    
                                    0.6%
                                 | |
| 20 | 74 | 
                                    
                                    14.9%
                                 | |
| 21 | 21 | 
                                    
                                    4.2%
                                 | |
| 22 | 2 | 
                                    
                                    0.4%
                                 | |
| 23 | 1 | 
                                    
                                    0.2%
                                 | |
| 24 | 3 | 
                                    
                                    0.6%
                                 | |
| 25 | 10 | 
                                    
                                    2%
                                 | |
| 26 | 3 | 
                                    
                                    0.6%
                                 | |
| 28 | 19 | 
                                    
                                    3.8%
                                 | |
| 29 | 1 | 
                                    
                                    0.2%
                                 | |
| 30 | 4 | 
                                    
                                    0.8%
                                 | |
| 35 | 6 | 
                                    
                                    1.2%
                                 | |
| 40 | 3 | 
                                    
                                    0.6%
                                 | |
| 42 | 1 | 
                                    
                                    0.2%
                                 | |
| 88 | Don't Know | 1 | 
                                    
                                    0.2%
                                 | 
| 90 | 1 | 
                                    
                                    0.2%
                                 | |
| 99 | Missing | 2 | 
                                    
                                    0.4%
                                 | 
| Sysmiss | 1632 |