condition	mean	min	max
0 h after light	19.89135	18.8829	20.8998
4 h after light	18.9939	18.6196	19.3682
8 h after light	21.6405	20.339	22.942
4 h after dark	14.308399999999999	12.913	15.7038
8 h after dark	13.4755	12.5531	14.3979
12 h after dark	21.539749999999998	20.5721	22.5074