condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0041515 0.0 0.0124545 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0020886066666666665 0.0 0.00626582