condition	mean	min	max
4 h after light	11.803625	9.69505	13.9122
8 h after light	14.03055	12.8679	15.1932
12 h after light	15.556750000000001	14.2156	16.8979
4 h after dark	20.240033333333333	17.5882	21.6408
8 h after dark	15.718733333333333	15.1799	16.3963
12 h after dark	12.5866	11.6838	13.7376