condition mean min max 4 h after light 5.2217199999999995 5.06297 5.4815 8 h after light 5.074176666666666 5.01405 5.117319999999999 12 h after light 5.238456666666666 5.06415 5.58636 4 h after dark 5.203313333333333 5.05831 5.34713 8 h after dark 5.22856 5.10766 5.40461 12 h after dark 5.20893 5.06901 5.41737