| Value | Category | Cases | |
|---|---|---|---|
| -9 | Not in universe | 901 | 
                                
                                83%
                             | 
| 1 | 1 | 159 | 
                                
                                14.7%
                             | 
| 2 | 2 | 20 | 
                                
                                1.8%
                             | 
| 3 | 3 | 4 | 
                                
                                0.4%
                             | 
| 4 | 4+ | 1 | 
                                
                                0.1%
                             | 
| 9995 | Missing | 0 | 
                                
                                0%
                             |