condition mean min max 0 h after light 38.2505 34.1947 42.3063 2 h after light 72.64185 69.8882 75.3955 4 h after light 66.2275 62.4578 69.9972 8 h after light 34.5382 32.5578 36.5186 12 h after light 46.75255 44.8928 48.6123 2 h after dark 45.5717 44.9145 46.2289 4 h after dark 33.78245 30.295 37.2699 8 h after dark 31.7829 30.396 33.1698 12 h after dark 42.0627 40.7387 43.3867