condition	mean	min	max
0 h after light	15.23405	14.4241	16.044
4 h after light	13.9022	13.3849	14.4195
8 h after light	16.1048	15.7103	16.4993
4 h after dark	13.4849	11.3937	15.5761
8 h after dark	15.15905	14.3427	15.9754
12 h after dark	14.163149999999998	12.0163	16.31