condition	mean	min	max
4 h after light	19.9021635	19.22628	20.578047
8 h after light	15.728269000000001	13.419001	18.037537
12 h after light	18.5943655	15.056892	22.131839
4 h after dark	15.353641	14.621465	16.085817
8 h after dark	18.4319585	17.386686	19.477231
12 h after dark	27.618701	27.618701	27.618701