condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.238112 0.0 0.476224 2 h after dark 0.0 0.0 0.0 4 h after dark 0.1879685 0.0 0.375937 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0