condition mean min max 0 h after light 19.5995 18.3176 20.8814 4 h after light 26.08025 18.3716 33.7889 8 h after light 23.6573 20.3097 27.0049 4 h after dark 18.03745 12.0969 23.978 8 h after dark 23.596600000000002 20.2179 26.9753 12 h after dark 23.87025 23.1395 24.601