condition	mean	min	max
4 h after light	6.908856666666667	6.671360000000001	7.07707
8 h after light	7.015420000000001	6.78282	7.13313
12 h after light	6.41276	5.98637	6.90712
4 h after dark	6.840213333333334	6.44519	7.24247
8 h after dark	7.28317	7.0279300000000005	7.4726300000000005
12 h after dark	7.723123333333334	7.511419999999999	7.85267