condition	mean	min	max
4 h after light	5.915223333333333	5.74003	6.065869999999999
8 h after light	5.70322	5.60843	5.84906
12 h after light	5.37856	5.10006	5.72234
4 h after dark	5.625993333333334	5.51063	5.77589
8 h after dark	5.725709999999999	5.69686	5.77516
12 h after dark	5.87854	5.76222	5.9583