condition mean min max 0 h after light 0.421681 0.0 0.843362 2 h after light 0.0 0.0 0.0 4 h after light 0.385772 0.0 0.771544 8 h after light 0.4045275 0.0 0.809055 12 h after light 0.447126 0.0 0.894252 2 h after dark 0.438447 0.0 0.876894 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0