| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1.Yes, start using | 68 |
1.7%
|
| 2 | 2.Yes, using and increase | 209 |
5.3%
|
| 3 | 3.Yes, using but not increase | 337 |
8.5%
|
| 4 | 4.Yes, using but decrease | 238 |
6%
|
| 5 | 5.No, do not use at all | 3101 |
78.4%
|
| 9 | 9.MISSING | 0 |
0%
|
| Sysmiss | 12 |