condition	mean	min	max
0 h after light	9.50234	9.13816	9.86652
4 h after light	8.556755	7.81899	9.29452
8 h after light	7.85731	7.69372	8.0209
4 h after dark	7.294195	5.74098	8.84741
8 h after dark	7.4372799999999994	7.21073	7.66383
12 h after dark	9.300640000000001	7.89278	10.7085