condition mean min max 4 h after light 12.1936745 10.834463 13.552886 8 h after light 11.744800999999999 11.054032 12.43557 12 h after light 11.175066000000001 11.087394 11.262738 4 h after dark 12.7133655 12.43557 12.991161 8 h after dark 12.2396645 10.821858 13.657471 12 h after dark 14.725345 14.725345 14.725345