condition	mean	min	max
0 h after light	5.869255	5.74683	5.99168
4 h after light	13.719000000000001	11.6064	15.8316
8 h after light	23.412399999999998	20.643	26.1818
4 h after dark	23.9264	23.0455	24.8073
8 h after dark	20.66395	19.2215	22.1064
12 h after dark	8.138945	6.54214	9.73575