condition mean min max 0 h after light 3.0509700000000004 2.68794 3.414 4 h after light 5.603595 4.16454 7.04265 8 h after light 8.964435 8.54776 9.38111 4 h after dark 7.368715 7.25972 7.47771 8 h after dark 6.21825 6.10193 6.33457 12 h after dark 4.164455 3.49921 4.8297