condition	mean	min	max
4 h after light	7.824463333333334	7.6353800000000005	7.9713
8 h after light	8.451463333333333	7.94239	8.74115
12 h after light	8.11476	7.78136	8.47373
4 h after dark	7.598813333333333	7.29117	8.03863
8 h after dark	7.622976666666666	7.3570899999999995	8.04241
12 h after dark	6.77331	6.735410000000001	6.8198300000000005