| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0–10 books | 374 |
39.7%
|
| 2 | 11–25 books | 289 |
30.7%
|
| 3 | 26–100 books | 153 |
16.2%
|
| 4 | 101–200 books | 74 |
7.9%
|
| 5 | More than 200 | 52 |
5.5%
|
| Sysmiss | 58 |