condition mean min max 0 h after light 6.77158 6.73292 6.81024 2 h after light 12.7226 11.9739 13.4713 4 h after light 10.81495 10.6855 10.9444 8 h after light 16.4953 14.5926 18.398 12 h after light 26.857 24.1675 29.5465 2 h after dark 26.785249999999998 24.4762 29.0943 4 h after dark 19.6523 15.2284 24.0762 8 h after dark 12.71791 8.70212 16.7337 12 h after dark 10.50227 9.49494 11.5096