| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 29 |
2.5%
|
| -55 | Never | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -5 | Never | 6 |
0.5%
|
| 0 | Current sales are normal | 945 |
82.5%
|
| 1 | 47 |
4.1%
|
|
| 2 | 29 |
2.5%
|
|
| 3 | 25 |
2.2%
|
|
| 4 | 11 |
1%
|
|
| 5 | 5 |
0.4%
|
|
| 6 | 23 |
2%
|
|
| 7 | 3 |
0.3%
|
|
| 8 | 6 |
0.5%
|
|
| 9 | 3 |
0.3%
|
|
| 10 | 4 |
0.3%
|
|
| 11 | 1 |
0.1%
|
|
| 12 | 6 |
0.5%
|
|
| 20 | 1 |
0.1%
|
|
| 24 | 1 |
0.1%
|
|
| Sysmiss | 178 |