condition mean min max 4 h after light 13.427150000000001 13.116 13.7383 8 h after light 10.249 10.0623 10.4357 12 h after light 11.53135 11.2884 11.7743 4 h after dark 20.3658 20.3386 20.393 8 h after dark 22.290349999999997 22.1135 22.4672 12 h after dark 20.9603 20.2419 21.6787