condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0113284 0.0 0.0226568 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.025790066666666667 0.0 0.0773702 12 h after dark 0.0 0.0 0.0