Group | Days in milking | Number of records |
1 | 5 - 35 | 8076 |
2 | 35 - 65 | 8608 |
3 | 65 - 95 | 8514 |
4 | 95 - 125 | 8912 |
5 | 125 - 155 | 8393 |
6 | 155 - 185 | 7713 |
7 | 185 - 215 | 6528 |
8 | 215 - 245 | 5409 |
9 | 245 - 275 | 4157 |
10 | 275 - 305 | 2635 |