| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 35 |
3.5%
|
| -7 | Prices are regulated | 216 |
21.6%
|
| -6 | Prices set by HQ | 58 |
5.8%
|
| 1 | Yes | 330 |
32.9%
|
| 2 | No | 363 |
36.2%
|