condition	mean	min	max
4 h after light	12.94965	12.7205	13.1788
8 h after light	15.21	14.5393	15.8807
12 h after light	13.94185	13.2101	14.6736
4 h after dark	15.66235	15.5579	15.7668
8 h after dark	14.5948	14.5361	14.6535
12 h after dark	15.77135	15.6372	15.9055