| Value | Category | Cases | |
|---|---|---|---|
| 1 | Increasing | 7279 |
37.1%
|
| 2 | Static | 2388 |
12.2%
|
| 3 | Decreasing | 4928 |
25.1%
|
| 4 | Don't know | 5028 |
25.6%
|