condition mean min max 0 h after light 8.967055 8.82529 9.10882 2 h after light 12.5029 11.3421 13.6637 4 h after light 11.4226 10.3086 12.5366 8 h after light 10.19765 8.9794 11.4159 12 h after light 15.786100000000001 14.6059 16.9663 2 h after dark 17.74875 16.0329 19.4646 4 h after dark 10.041885 9.09807 10.9857 8 h after dark 12.2246 11.6948 12.7544 12 h after dark 10.49625 10.2813 10.7112