| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 14 |
2%
|
| -7 | Prices are regulated | 181 |
25.4%
|
| -6 | Prices set by HQ | 11 |
1.5%
|
| 1 | Yes | 127 |
17.8%
|
| 2 | No | 380 |
53.3%
|