| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 43 |
11.8%
|
| -6 | Prices set by HQ | 10 |
2.8%
|
| 1 | Yes | 109 |
30%
|
| 2 | No | 201 |
55.4%
|