condition mean min max 4 h after light 3.5606099999999996 3.42765 3.69357 8 h after light 3.54353 3.44463 3.64243 12 h after light 3.6716100000000003 3.66211 3.68111 4 h after dark 4.381315 3.68363 5.079 8 h after dark 4.09256 3.91574 4.26938 12 h after dark 4.006185 3.58291 4.42946