condition mean min max 4 h after light 157.40449999999998 136.941 177.868 8 h after light 135.0445 124.269 145.82 12 h after light 123.04400000000001 121.546 124.542 4 h after dark 155.49766666666667 150.574 161.439 8 h after dark 223.67033333333333 207.526 235.049 12 h after dark 185.339 169.106 205.575