condition mean min max 0 h after light 4.67181 3.87733 5.46629 4 h after light 3.60386 3.54438 3.66334 8 h after light 3.68959 3.11941 4.25977 4 h after dark 4.626720000000001 4.27195 4.98149 8 h after dark 5.953915 5.82078 6.08705 12 h after dark 6.544745 5.4436 7.64589