condition mean min max 0 h after light 49.965 47.8875 52.0425 2 h after light 49.82705 49.1083 50.5458 4 h after light 41.59355 35.7319 47.4552 8 h after light 37.7594 35.842 39.6768 12 h after light 48.90815 44.0956 53.7207 2 h after dark 51.341 50.7211 51.9609 4 h after dark 46.77955 41.0316 52.5275 8 h after dark 46.8899 45.1902 48.5896 12 h after dark 49.5386 41.2947 57.7825