| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 15593 |
93.8%
|
| 1 | 231 |
1.4%
|
|
| 2 | 305 |
1.8%
|
|
| 3 | 199 |
1.2%
|
|
| 4 | 103 |
0.6%
|
|
| 5 | 91 |
0.5%
|
|
| 6 | 26 |
0.2%
|
|
| 7 | 12 |
0.1%
|
|
| 8 | 8 |
0%
|
|
| 9 | 7 |
0%
|
|
| 10 | TEN OR MORE BOOKS | 47 |
0.3%
|
| 99 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 65 |