condition mean min max 0 h after light 0.071076 0.0 0.142152 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.070854 0.0 0.141708