condition mean min max 4 h after light 9.85832 5.49586 12.7889 8 h after light 10.702466666666666 5.01154 17.7362 12 h after light 13.16043 7.63969 20.5159 4 h after dark 21.375500000000002 15.7937 25.3349 8 h after dark 13.675763333333332 8.45939 19.0402 12 h after dark 7.410583333333333 7.07749 7.82342