condition	mean	min	max
4 h after light	7.9492199999999995	7.755719999999999	8.31611
8 h after light	7.996499999999999	7.82626	8.14407
12 h after light	7.812143333333333	7.55753	8.15048
4 h after dark	8.113946666666667	7.88045	8.52785
8 h after dark	8.260346666666667	7.95257	8.42191
12 h after dark	8.443743333333334	8.30022	8.62771