| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
3.8%
|
|
| 1 | Decreased since 2002 | 5 |
6.4%
|
| 2 | No change | 42 |
53.8%
|
| 3 | Increased since 2002 | 27 |
34.6%
|
| 4 | 1 |
1.3%
|
|
| -9 | 18 | ||
| -8 | 2 | ||
| -7 | 35 |