condition	mean	min	max
4 h after light	7.28601	7.15917	7.3811100000000005
8 h after light	6.91881	6.79483	7.00626
12 h after light	6.72889	6.570869999999999	6.82676
4 h after dark	6.97394	6.559419999999999	7.35602
8 h after dark	7.191986666666666	6.99079	7.515439999999999
12 h after dark	7.17937	7.0331399999999995	7.37608