condition	mean	min	max
4 h after light	7.230553333333333	7.086880000000001	7.371289999999999
8 h after light	7.21204	7.05847	7.398680000000001
12 h after light	7.834626666666667	7.60646	7.9905
4 h after dark	7.569576666666666	7.33898	7.74908
8 h after dark	7.3424000000000005	7.2348300000000005	7.4897100000000005
12 h after dark	7.18054	7.11645	7.2139