| Frequencies | Percentages | Cumulative frequencies |
1 - 5 | 53 | 62.4 | 62.4 |
6 - 10 | 12 | 14.1 | 76.5 |
11 - 15 | 9 | 10.6 | 87.1 |
>16 | 11 | 12.9 | 100.0 |
Total | 85 | 100.0 |
|