| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0–10 books | 206 |
21%
|
| 2 | 11–25 books | 271 |
27.6%
|
| 3 | 26–100 books | 257 |
26.2%
|
| 4 | 101–200 books | 126 |
12.8%
|
| 5 | More than 200 | 121 |
12.3%
|
| Sysmiss | 19 |