condition	mean	min	max
4 h after light	5.46316	5.19953	5.6818
8 h after light	5.28911	5.07774	5.55007
12 h after light	5.374066666666667	5.24902	5.51002
4 h after dark	5.3138	5.07926	5.47818
8 h after dark	5.26194	5.1003	5.35709
12 h after dark	5.05402	4.94148	5.25258