condition	mean	min	max
4 h after light	7.59943	7.4877199999999995	7.66666
8 h after light	7.689023333333334	7.62551	7.7942100000000005
12 h after light	7.7263866666666665	7.56382	7.82066
4 h after dark	7.35898	7.272360000000001	7.46979
8 h after dark	7.25429	7.14355	7.4641
12 h after dark	7.1001433333333335	6.926489999999999	7.25478