condition mean min max 4 h after light 2.5047699999999997 2.20151 2.80803 8 h after light 7.657305 7.41503 7.89958 12 h after light 14.6065 14.4932 14.7198 4 h after dark 12.358450000000001 12.349 12.3679 8 h after dark 7.0303 6.95668 7.10392 12 h after dark 4.738519999999999 4.64478 4.83226