condition	mean	min	max
4 h after light	20.246450000000003	19.5744	20.9185
8 h after light	14.49145	14.3471	14.6358
12 h after light	13.090900000000001	12.5356	13.6462
4 h after dark	19.2728	18.6724	19.8732
8 h after dark	18.477200000000003	18.0252	18.9292
12 h after dark	19.44965	19.3245	19.5748