| age group | Percentage |
| under 18 years old | 5.4% |
| From 18 to 25 years old | 35.3% |
| From 26 to 30 years old | 20.2% |
| From 31 to 40 years old | 23.6% |
| From 41 to 50 years old | 8.9% |
| over 50 years | 6.6% |