condition mean min max 0 h after light 5.5974 5.25815 5.93665 2 h after light 3.793755 3.6476 3.93991 4 h after light 2.95753 2.56274 3.35232 8 h after light 2.33493 2.07498 2.59488 12 h after light 3.49559 3.47776 3.51342 2 h after dark 3.97012 3.87296 4.06728 4 h after dark 3.47242 3.41132 3.53352 8 h after dark 5.543495 5.33721 5.74978 12 h after dark 6.3866 5.79532 6.97788