condition	mean	min	max
0 h after light	7.812	7.46133	8.16267
4 h after light	8.981134999999998	8.67424	9.28803
8 h after light	9.659780000000001	9.31136	10.0082
4 h after dark	9.81595	8.8902	10.7417
8 h after dark	9.04655	9.00598	9.08712
12 h after dark	7.287715	6.77194	7.80349