condition	mean	min	max
4 h after light	8.969100000000001	8.8838	9.057739999999999
8 h after light	9.182246666666666	9.083919999999999	9.25985
12 h after light	9.188446666666668	9.1071	9.23818
4 h after dark	8.942836666666667	8.9269	8.9726
8 h after dark	8.68871	8.51257	8.83222
12 h after dark	8.648783333333334	8.44388	8.77294