condition mean min max 3 h after light 0.09786133333333333 0.0 0.169707 6 h after light 0.03737033333333333 0.0 0.112111 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0983615 0.0 0.196723