condition	mean	min	max
4 h after light	14.1883555	14.034051	14.34266
8 h after light	13.739907500000001	12.129552	15.350263
12 h after light	16.022511	16.017847	16.027175
4 h after dark	19.300469	14.820377	23.780561
8 h after dark	18.9925875	15.350263	22.634912
12 h after dark	13.699415	13.699415	13.699415