condition mean min max 4 h after light 971.872515 657.119771 1286.625259 8 h after light 801.6736149999999 485.693595 1117.653635 12 h after light 1810.794206 384.035993 3237.552419 4 h after dark 292.5155785 100.217366 484.813791 8 h after dark 1136.689779 48.558816 2224.820742 12 h after dark 795.539749 795.539749 795.539749