condition	mean	min	max
4 h after light	7.472316666666667	7.193039999999999	7.67583
8 h after light	8.957243333333334	8.669080000000001	9.19672
12 h after light	8.27856	8.21417	8.32018
4 h after dark	8.57507	8.43517	8.6844
8 h after dark	8.670363333333334	8.6155	8.77543
12 h after dark	8.176413333333333	7.8810899999999995	8.54508