condition	mean	min	max
4 h after light	5.950846666666666	5.68432	6.25525
8 h after light	5.8665166666666675	5.703880000000001	6.1715800000000005
12 h after light	5.9794133333333335	5.76184	6.41234
4 h after dark	6.09313	5.89738	6.308730000000001
8 h after dark	5.81501	5.55842	6.03413
12 h after dark	6.06219	5.95004	6.2384