| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 10 |
2.8%
|
| -6 | Prices set by HQ | 2 |
0.6%
|
| 1 | Yes | 45 |
12.5%
|
| 2 | No | 303 |
84.2%
|