| emm type and subtype | 2015 (n = 50) | 2016 (n = 45) | 2017 (n = 25) | In total (n = 120) |
| emm 1 | ||||
| 1.0 | 10 (20%) | 14 (31.1%) | 0 | 24 (20%) |
| 1.16 | 0 | 1 (2.2%) | 0 | 0 |
| 1.25 | 4 (8%) | 0 | 0 | 4 (3.3%) |
| 1.65 | 2 (4%) | 1 (2.2%) | 1 (4%) | 4 (3.3%) |
| emm 12 | ||||
| 12.0 | 21 (42%) | 15 (33.3%) | 12 (48%) | 48 (40%) |
| 12.18 | 0 | 1 (2.2%) | 0 | 1 (0.8%) |
| 12.19 | 1 (2%) | 1 (2.2%) | 1 (4%) | 3 (2.5%) |
| 12.37 | 1 (2%) | 2 (4.4%) | 0 | 3 (2.5%) |
| 12.71 | 1 (2%) | 0 | 0 | 1 (0.8%) |
| 12.76 | 8 (16%) | 1 (2.2%) | 0 | 9 (7.5%) |
| 12.8 | 0 | 0 | 6 (24%) | 6 (5%) |
| 12.95 | 0 | 0 | 1 (4%) | 1 (0.8%) |
| emm 4 | ||||
| 4.0 | 0 | 0 | 1 (4%) | 1 (0.8%) |
| 4.14 | 0 | 3 (6.7%) | 0 | 3 (2.5%) |
| emm 22 | ||||
| 22.0 | 0 | 1 (2.2%) | 0 | 1 (0.8%) |
| 22.1 | 0 | 2 (4.4%) | 0 | 2 (1.7%) |
| emm 75 | ||||
| 75.0 | 0 | 1 (2.2%) | 0 | 1 (0.8%) |
| 75.3 | 0 | 1 (2.2%) | 0 | 1 (0.8%) |
| emm 89 | ||||
| 89.0 | 1 (2%) | 1 (2.2%) | 2 (8%) | 4 (3.3%) |
| emm 170 | ||||
| 170.0 | 1 (2%) | 0 | 0 | 1 (0.8%) |
| emm 241 | ||||
| 241.1 | 0 | 0 | 1 (4%) | 1 (0.8%) |