| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 17142 |
93.6%
|
| 1 | 266 |
1.5%
|
|
| 2 | 201 |
1.1%
|
|
| 3 | 144 |
0.8%
|
|
| 4 | 53 |
0.3%
|
|
| 5 | 82 |
0.4%
|
|
| 6 | 20 |
0.1%
|
|
| 7 | 6 |
0%
|
|
| 8 | 8 |
0%
|
|
| 10 | TEN OR MORE BOOKS | 63 |
0.3%
|
| Sysmiss | 327 |
1.8%
|