| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 23 | 
                                    
                                    1.1%
                                 | 
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 3 | 
                                    
                                    0.1%
                                 | 
| 3 | NO, NOT USED | 2057 | 
                                    
                                    95.5%
                                 | 
| Sysmiss | 70 | 
                                    
                                    3.3%
                                 |