| Value | Category | Cases | |
|---|---|---|---|
| 1 | increased | 2067 | 
                                    
                                    35%
                                 | 
| 2 | decreased | 1847 | 
                                    
                                    31.3%
                                 | 
| 3 | stayed the same | 1990 | 
                                    
                                    33.7%
                                 | 
| Sysmiss | 1968 |