condition	mean	min	max
4 h after light	7.21211	6.953589999999999	7.35924
8 h after light	6.998923333333333	6.649189999999999	7.1758
12 h after light	7.051396666666667	6.41631	7.5557300000000005
4 h after dark	7.045263333333333	6.647189999999999	7.271380000000001
8 h after dark	7.0119	6.7326	7.33732
12 h after dark	6.939433333333334	6.57083	7.26054