| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
0.2%
|
| -7 | Prices are regulated | 204 |
11.8%
|
| -6 | Prices set by HQ | 12 |
0.7%
|
| 1 | Yes | 200 |
11.6%
|
| 2 | No | 1305 |
75.7%
|