| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 2 |
1.4%
|
| -7 | not in business at the end of 2006 | 37 |
25%
|
| 1 | 11 |
7.4%
|
|
| 2 | 28 |
18.9%
|
|
| 3 | 37 |
25%
|
|
| 4 | 28 |
18.9%
|
|
| 5 | 2 |
1.4%
|
|
| 6 | 3 |
2%
|