NM Staff Members, 2012–2016
| Frequency of findings by year | |||||
| NM staff (n) | 2012 | 2013 | 2014 | 2015 | 2016 |
| New | |||||
| 1 | NA | NA | NA | 21.7% | 20.4% |
| 2 | NA | NA | NA | NA | 30.1% |
| 3 | NA | NA | NA | 30.4% | 23.8% |
| 4 | NA | NA | NA | 11.5% | 10.5% |
| 5 | NA | 30.6% | 16.1% | 7.9% | 12.8% |
| 6 | NA | 32.2% | 16.9% | 8.0% | 12.8% |
| 7 | NA | NA | NA | NA | 32.9% |
| 8 | NA | NA | NA | NA | 18.2% |
| Senior | |||||
| 9 | 22.1% | 11.8% | 9% | 8.8% | 9.7% |
| 10 | 4.1% | 0% | 3.9% | 2.8% | 5.6% |
| 11 | 32.2% | 17.3% | 14.4% | 15.2% | 11.7% |
| 12 | 3.3% | 1.8% | 4.8% | 4.9% | 0% |
| 13 | 32.5% | 28.2% | 15.7% | 16.8% | 18.2% |
| 14 | 17.9% | 14.8% | 11.2% | 10.5% | 11.3% |
| 15 | 38.7% | 26.5% | 21.3% | 19.5% | 27.1% |
| 16 | 7.2% | 4.1% | 5% | 9.2% | 7.5% |
| Mean | 19.8% | 13.1% | 10.7% | 11.0% | 11.4% |
| SD | 13.9% | 10.8% | 6.2% | 5.8% | 8.2% |
NA = not applicable.