condition	mean	min	max
4 h after light	7.10867	6.985860000000001	7.22685
8 h after light	7.1541500000000005	7.104830000000001	7.22192
12 h after light	7.261926666666667	7.20863	7.34132
4 h after dark	7.189726666666666	7.086469999999999	7.274719999999999
8 h after dark	7.045886666666667	6.901860000000001	7.170780000000001
12 h after dark	7.067946666666667	6.9362	7.15147