condition mean min max 4 h after light 1935.6 1935.6 1935.6 8 h after light 1708.5500000000002 1446.4 1970.7 12 h after light 1192.4 1086.0 1298.8 4 h after dark 923.85 917.5 930.2 8 h after dark 1054.9 920.0 1189.8 12 h after dark 1383.65 1117.3 1650.0