condition mean min max 4 h after light 133.227239 120.756438 145.69804 8 h after light 156.7523135 131.207857 182.29677 12 h after light 178.410848 174.35887 182.462826 4 h after dark 262.852351 186.271767 339.432935 8 h after dark 298.715676 210.891603 386.539749 12 h after dark 211.440347 211.440347 211.440347