condition	mean	min	max
4 h after light	6.55237	6.4311	6.63041
8 h after light	6.43879	6.303669999999999	6.53633
12 h after light	6.127893333333334	6.0458300000000005	6.2525
4 h after dark	6.290766666666667	6.15688	6.519080000000001
8 h after dark	6.489246666666666	6.4078599999999994	6.597510000000001
12 h after dark	6.680466666666667	6.55479	6.79564