condition mean min max 0 h after light 2.06109 0.0 4.12218 2 h after light 1.917975 0.0 3.83595 4 h after light 1.94535 0.0 3.8907 8 h after light 3.954495 0.0 7.90899 12 h after light 0.0 0.0 0.0 2 h after dark 2.14304 0.0 4.28608 4 h after dark 3.81951 0.0 7.63902 8 h after dark 4.230155 4.1534 4.30691 12 h after dark 3.930985 0.0 7.86197