condition	mean	min	max
4 h after light	7.115846666666666	7.04332	7.216939999999999
8 h after light	7.10044	6.99872	7.27221
12 h after light	6.9511	6.65033	7.18134
4 h after dark	7.181686666666667	6.8255300000000005	7.4575
8 h after dark	7.325713333333334	7.196910000000001	7.5461800000000006
12 h after dark	7.4391799999999995	7.334039999999999	7.56035