| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Not available | 0 |
0%
|
| 1 | About the same | 20 |
41.7%
|
| 2 | Higher volume of trade | 6 |
12.5%
|
| 3 | Lower volume of trade | 22 |
45.8%
|