DenHelder
| datum | Gemiddelde | 10% percentiel | 50% percentiel | Maximum |
| 20210305 | 18.3475 | 17.348 | 16.776 | 18.994 |
| 20210304 | 18.9764 | 18.930 | 17.877 | 19.01 |
| 20210303 | 17.7264 | 17.666 | 17.474 | 18 |
| 20210302 | 18.8652 | 18.832 | 16.840 | 18.894 |
| 20210301 | 19.1637 | 19.076 | 17.316 | 19.256 |
| 20210228 | 17.5394 | 17.356 | 16.789 | 17.741 |
| 20210227 | 17.8572 | 17.578 | 16.100 | 18.11 |
Gemiddelde van de 10% beste metingen