| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
0.5%
|
| -7 | Prices are regulated | 76 |
2.8%
|
| -6 | Prices set by HQ | 54 |
2%
|
| 1 | Yes | 948 |
35.2%
|
| 2 | No | 1606 |
59.5%
|