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 0.0164873 0.0 0.0329746 12 h after light 0.0161566 0.0 0.0323132 2 h after dark 0.0331108 0.0 0.0662216 4 h after dark 0.0 0.0 0.0 8 h after dark 0.01737985 0.0 0.0347597 12 h after dark 0.0 0.0 0.0