| Education1 | Unit | 2014 | 2013 | 2012 |
| Civil engineers | Number | 344 | 326 | 296 |
| Engineers | Number | 215 | 207 | 196 |
| Technical education/certificate of apprenticeship | Number | 253 | 256 | 237 |
| Master of Science and Economics/Economist | Number | 93 | 85 | 78 |
| Other university/university college degree | Number | 130 | 121 | 104 |
| Commercial | Number | 87 | 37 | 36 |
| Other | Number | 51 | 48 | 48 |