| Value | Category | Cases | |
|---|---|---|---|
| 0 | NONE | 2397 |
69%
|
| 1 | 87 |
2.5%
|
|
| 2 | 144 |
4.1%
|
|
| 3 | 159 |
4.6%
|
|
| 4 | 95 |
2.7%
|
|
| 5 | 118 |
3.4%
|
|
| 6 | 52 |
1.5%
|
|
| 7 | 15 |
0.4%
|
|
| 8 | 19 |
0.5%
|
|
| 9 | 3 |
0.1%
|
|
| 10 | TEN OR MORE BOOKS | 331 |
9.5%
|
| Sysmiss | 54 |
1.6%
|