| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.3%
|
| -7 | Prices are regulated | 126 |
13%
|
| -6 | Prices set by HQ | 69 |
7.1%
|
| 1 | Yes | 189 |
19.6%
|
| 2 | No | 579 |
59.9%
|