condition	mean	min	max
4 h after light	18.0882	16.8056	19.3708
8 h after light	16.43645	15.4109	17.462
12 h after light	14.751949999999999	12.8127	16.6912
4 h after dark	12.541466666666667	12.4506	12.7047
8 h after dark	15.0306	14.174	15.6818
12 h after dark	16.331666666666667	15.507	17.3101