condition	mean	min	max
4 h after light	18.0068	17.651	18.3626
8 h after light	20.71675	20.7025	20.731
12 h after light	19.1234	18.7408	19.506
4 h after dark	26.423949999999998	25.0846	27.7633
8 h after dark	21.622	21.6065	21.6375
12 h after dark	23.050150000000002	22.5263	23.574