| Age group | Sex | Very low, % | n | Low, % | n | Average, % | n | High, % | n | Very high, % | n | Total, n |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25–35 years | Male | 7.1 | 4 | 25.0 | 14 | 41.1 | 23 | 25.0 | 14 | 1.8 | 1 | 56 |
| Female | 3.4 | 2 | 17.2 | 10 | 50.0 | 29 | 29.3 | 17 | 0.0 | 0 | 58 | |
| Total | 5.3 | 6 | 21.1 | 24 | 45.6 | 52 | 27.2 | 31 | 0.9 | 1 | 114 | |
| 36–50 years | Male | 3.2 | 1 | 16.1 | 5 | 64.5 | 20 | 16.1 | 5 | 0.0 | 0 | 31 |
| Female | 11.8 | 2 | 5.9 | 1 | 70.6 | 12 | 11.8 | 2 | 0.0 | 0 | 17 | |
| Total | 6.3 | 3 | 12.5 | 6 | 66.7 | 32 | 14.6 | 7 | 0.0 | 0 | 48 | |
| 51–65 years | Male | 4.5 | 1 | 4.5 | 1 | 72.7 | 16 | 18.2 | 4 | 0.0 | 0 | 22 |
| Female | 0.0 | 0 | 45.5 | 5 | 45.5 | 5 | 0.0 | 0 | 9.1 | 1 | 11 | |
| Total | 3.0 | 1 | 18.2 | 6 | 63.6 | 21 | 12.1 | 4 | 3.0 | 1 | 33 | |
| End total | 5.1 | 10 | 18.5 | 36 | 53.8 | 105 | 21.5 | 4 | 1.0 | 2 | 195 |