| Value | Category | Cases | |
|---|---|---|---|
| 1 | 10 | 
                                
                                4.7%
                             | |
| 2 | 9 | 
                                
                                4.2%
                             | |
| 3 | 6 | 
                                
                                2.8%
                             | |
| 4 | 3 | 
                                
                                1.4%
                             | |
| 10 | 1 | 
                                
                                0.5%
                             | |
| 20 | 1 | 
                                
                                0.5%
                             | |
| 95 | Missing | 1 | 
                                
                                0.5%
                             | 
| 96 | Other | 0 | 
                                
                                0%
                             | 
| 97 | Refusal | 0 | 
                                
                                0%
                             | 
| 98 | Dont know | 0 | 
                                
                                0%
                             | 
| 99 | NA | 181 | 
                                
                                85.4%
                             |