| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 2666 |
45.6%
|
| 1 | 222 |
3.8%
|
|
| 2 | 208 |
3.6%
|
|
| 3 | 126 |
2.2%
|
|
| 4 | 81 |
1.4%
|
|
| 5 | 96 |
1.6%
|
|
| 6 | 35 |
0.6%
|
|
| 7 | 25 |
0.4%
|
|
| 8 | 18 |
0.3%
|
|
| 9 | 8 |
0.1%
|
|
| 10 | TEN OR MORE BOOKS | 72 |
1.2%
|
| Sysmiss | 2293 |
39.2%
|