| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 114 |
31.3%
|
| -6 | Prices set by HQ | 0 |
0%
|
| 1 | Yes | 46 |
12.6%
|
| 2 | No | 204 |
56%
|