| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 | 
                                    
                                    0.7%
                                 | 
| 1 | One year or less | 4 | 
                                    
                                    0.7%
                                 | 
| 2 | 2 | 
                                    
                                    0.3%
                                 | |
| 3 | 4 | 
                                    
                                    0.7%
                                 | |
| 4 | 1 | 
                                    
                                    0.2%
                                 | |
| 5 | 9 | 
                                    
                                    1.5%
                                 | |
| 6 | 6 | 
                                    
                                    1%
                                 | |
| 7 | 2 | 
                                    
                                    0.3%
                                 | |
| 8 | 5 | 
                                    
                                    0.8%
                                 | |
| 9 | 2 | 
                                    
                                    0.3%
                                 | |
| 10 | 21 | 
                                    
                                    3.5%
                                 | |
| 11 | 2 | 
                                    
                                    0.3%
                                 | |
| 12 | 7 | 
                                    
                                    1.2%
                                 | |
| 13 | 6 | 
                                    
                                    1%
                                 | |
| 14 | 2 | 
                                    
                                    0.3%
                                 | |
| 15 | 24 | 
                                    
                                    3.9%
                                 | |
| 16 | 5 | 
                                    
                                    0.8%
                                 | |
| 17 | 1 | 
                                    
                                    0.2%
                                 | |
| 18 | 9 | 
                                    
                                    1.5%
                                 | |
| 20 | 60 | 
                                    
                                    9.9%
                                 | |
| 21 | 4 | 
                                    
                                    0.7%
                                 | |
| 22 | 5 | 
                                    
                                    0.8%
                                 | |
| 23 | 3 | 
                                    
                                    0.5%
                                 | |
| 24 | 1 | 
                                    
                                    0.2%
                                 | |
| 25 | 33 | 
                                    
                                    5.4%
                                 | |
| 26 | 4 | 
                                    
                                    0.7%
                                 | |
| 27 | 3 | 
                                    
                                    0.5%
                                 | |
| 28 | 7 | 
                                    
                                    1.2%
                                 | |
| 29 | 3 | 
                                    
                                    0.5%
                                 | |
| 30 | 94 | 
                                    
                                    15.5%
                                 | |
| 31 | 6 | 
                                    
                                    1%
                                 | |
| 32 | 4 | 
                                    
                                    0.7%
                                 | |
| 33 | 3 | 
                                    
                                    0.5%
                                 | |
| 34 | 4 | 
                                    
                                    0.7%
                                 | |
| 35 | 31 | 
                                    
                                    5.1%
                                 | |
| 36 | 4 | 
                                    
                                    0.7%
                                 | |
| 37 | 8 | 
                                    
                                    1.3%
                                 | |
| 38 | 9 | 
                                    
                                    1.5%
                                 | |
| 39 | 2 | 
                                    
                                    0.3%
                                 | |
| 40 | 80 | 
                                    
                                    13.2%
                                 | |
| 41 | 3 | 
                                    
                                    0.5%
                                 | |
| 42 | 2 | 
                                    
                                    0.3%
                                 | |
| 43 | 5 | 
                                    
                                    0.8%
                                 | |
| 44 | 3 | 
                                    
                                    0.5%
                                 | |
| 45 | 20 | 
                                    
                                    3.3%
                                 | |
| 46 | 4 | 
                                    
                                    0.7%
                                 | |
| 47 | 3 | 
                                    
                                    0.5%
                                 | |
| 48 | 3 | 
                                    
                                    0.5%
                                 | |
| 49 | 1 | 
                                    
                                    0.2%
                                 | |
| 50 | 52 | 
                                    
                                    8.6%
                                 | |
| 51 | 2 | 
                                    
                                    0.3%
                                 | |
| 52 | 1 | 
                                    
                                    0.2%
                                 | |
| 53 | 3 | 
                                    
                                    0.5%
                                 | |
| 54 | 4 | 
                                    
                                    0.7%
                                 | |
| 56 | 2 | 
                                    
                                    0.3%
                                 | |
| 60 | 13 | 
                                    
                                    2.1%
                                 | |
| 62 | 1 | 
                                    
                                    0.2%
                                 | |
| 64 | 1 | 
                                    
                                    0.2%
                                 | |
| 65 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 4 |