| 1 | 2 | 3 | 4 | 5 | Mean Rating |
Under 30 years | 29 | 18 | 12 | 18 | 23 | 2.88 ± 0.39 |
31 - 45 years | 13 | 0 | 21 | 30 | 36 | 3.77 ± 0.19 |
46 - 60 years | 11 | 7 | 14 | 17 | 51 | 3.92 ± 0.16 |
Over 60 years | 12 | 3 | 14 | 22 | 48 | 3.94 ± 0.14 |