condition	mean	min	max
4 h after light	16.814884	16.233398	17.39637
8 h after light	13.197061999999999	12.41758	13.976544
12 h after light	14.933802	14.515109	15.352495
4 h after dark	14.114354	13.713599	14.515109
8 h after dark	13.1479295	12.157849	14.13801
12 h after dark	17.804728	17.804728	17.804728