| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 0 | Less than 1 Year | 0 | 
                                    
                                    0%
                                 | 
| 1 | 3 | 
                                    
                                    2.3%
                                 | |
| 2 | 53 | 
                                    
                                    41.4%
                                 | |
| 3 | 28 | 
                                    
                                    21.9%
                                 | |
| 4 | 5 | 
                                    
                                    3.9%
                                 | |
| 5 | 5 | 
                                    
                                    3.9%
                                 | |
| 6 | 1 | 
                                    
                                    0.8%
                                 | |
| 7 | 2 | 
                                    
                                    1.6%
                                 | |
| 8 | 2 | 
                                    
                                    1.6%
                                 | |
| 10 | 8 | 
                                    
                                    6.3%
                                 | |
| 11 | 2 | 
                                    
                                    1.6%
                                 | |
| 12 | 1 | 
                                    
                                    0.8%
                                 | |
| 13 | 4 | 
                                    
                                    3.1%
                                 | |
| 14 | 1 | 
                                    
                                    0.8%
                                 | |
| 15 | 4 | 
                                    
                                    3.1%
                                 | |
| 18 | 2 | 
                                    
                                    1.6%
                                 | |
| 24 | 1 | 
                                    
                                    0.8%
                                 | |
| 25 | 2 | 
                                    
                                    1.6%
                                 | |
| 35 | 1 | 
                                    
                                    0.8%
                                 | |
| 38 | 1 | 
                                    
                                    0.8%
                                 | |
| 40 | 2 | 
                                    
                                    1.6%
                                 |