| Age group | My knowledge is … | Total | ||
|
| … more than needed for my job | … the same as needed for my job | … less than needed for my job |
|
| <30 | 6 (24%) | 15 | 4 | 25 |
| 30 - 34.9 | 23 (43%) | 28 | 2 | 53 |
| 35 - 39.9 | 37 (62%) | 22 | 1 | 60 |
| 40 - 44.9 | 55 (58%) | 35 | 5 | 95 |
| 45 - 49.9 | 62 (55%) | 46 | 4 | 112 |
| 50 - 54.9 | 51 (75%) | 14 | 3 | 68 |
| 55 - 59.9 | 22 (59%) | 14 | 1 | 37 |
| 60- | 3 (100%) | 0 | 0 | 3 |
| Total | 259 (57%) | 174 | 20 | 453 |