condition mean min max 4 h after light 11.1964595 10.669166 11.723753 8 h after light 11.2975865 9.365343 13.22983 12 h after light 10.491897999999999 9.372116 11.61168 4 h after dark 11.1467855 8.755287 13.538284 8 h after dark 10.391973499999999 9.766399 11.017548 12 h after dark 8.591996 8.591996 8.591996