condition mean min max 4 h after light 60.16074999999999 54.0888 66.2327 8 h after light 49.86465 48.5444 51.1849 12 h after light 55.0189 54.0716 55.9662 4 h after dark 63.1484 59.9585 66.3383 8 h after dark 72.74685 72.1601 73.3336 12 h after dark 82.92555 80.5819 85.2692