| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 78 |
21.4%
|
| -6 | Prices set by HQ | 4 |
1.1%
|
| 1 | Yes | 49 |
13.5%
|
| 2 | No | 233 |
64%
|