condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 1.02104 0.0 3.06312 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 1.1432366666666667 0.0 1.83585 12 h after dark 0.4817395 0.0 0.963479