condition mean min max 4 h after light 11.510318999999999 11.221822 11.798816 8 h after light 10.9178185 10.827694 11.007943 12 h after light 10.477438 10.477438 10.477438 4 h after dark 10.6542535 10.234215 11.074292 8 h after dark 10.154679999999999 9.189615 11.119745 12 h after dark 8.521232 8.521232 8.521232