| Characteristics | Frequencies |
| Sex |
|
| Men | 64 (68.1%) |
| Women | 30 (31.9%) |
| Age interval (in years) |
|
| 20 - 25 | 10 (10.63%) |
| 26 - 30 | 15 (15.95%) |
| 31 - 35 | 20 (21.27%) |
| 36 - 40 | 25 (26.59%) |
| 41 - 45 | 14 (14.89%) |
| >45 | 10 (10.63%) |