| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 | 
                                    
                                    0.9%
                                 | |
| 1 | 8 | 
                                    
                                    1%
                                 | |
| 2 | 12 | 
                                    
                                    1.5%
                                 | |
| 3 | 25 | 
                                    
                                    3.2%
                                 | |
| 4 | 19 | 
                                    
                                    2.4%
                                 | |
| 5 | 9 | 
                                    
                                    1.1%
                                 | |
| 6 | 18 | 
                                    
                                    2.3%
                                 | |
| 7 | 20 | 
                                    
                                    2.5%
                                 | |
| 8 | 12 | 
                                    
                                    1.5%
                                 | |
| 9 | 25 | 
                                    
                                    3.2%
                                 | |
| 10 | 18 | 
                                    
                                    2.3%
                                 | |
| 11 | 28 | 
                                    
                                    3.5%
                                 | |
| 12 | 23 | 
                                    
                                    2.9%
                                 | |
| 13 | 16 | 
                                    
                                    2%
                                 | |
| 14 | 15 | 
                                    
                                    1.9%
                                 | |
| 15 | 15 | 
                                    
                                    1.9%
                                 | |
| 16 | 10 | 
                                    
                                    1.3%
                                 | |
| 17 | 26 | 
                                    
                                    3.3%
                                 | |
| 18 | 10 | 
                                    
                                    1.3%
                                 | |
| 19 | 34 | 
                                    
                                    4.3%
                                 | |
| 20 | 24 | 
                                    
                                    3%
                                 | |
| 21 | 27 | 
                                    
                                    3.4%
                                 | |
| 22 | 26 | 
                                    
                                    3.3%
                                 | |
| 23 | 25 | 
                                    
                                    3.2%
                                 | |
| 24 | 19 | 
                                    
                                    2.4%
                                 | |
| 25 | 18 | 
                                    
                                    2.3%
                                 | |
| 26 | 19 | 
                                    
                                    2.4%
                                 | |
| 27 | 31 | 
                                    
                                    3.9%
                                 | |
| 28 | 14 | 
                                    
                                    1.8%
                                 | |
| 29 | 37 | 
                                    
                                    4.7%
                                 | |
| 30 | 39 | 
                                    
                                    4.9%
                                 | |
| 31 | 28 | 
                                    
                                    3.5%
                                 | |
| 32 | 38 | 
                                    
                                    4.8%
                                 | |
| 33 | 22 | 
                                    
                                    2.8%
                                 | |
| 34 | 13 | 
                                    
                                    1.6%
                                 | |
| 35 | 22 | 
                                    
                                    2.8%
                                 | |
| 36 | 15 | 
                                    
                                    1.9%
                                 | |
| 37 | 11 | 
                                    
                                    1.4%
                                 | |
| 38 | more than 37 years | 12 | 
                                    
                                    1.5%
                                 | 
| Sysmiss | 722 |