condition	mean	min	max
4 h after light	3.7270299999999996	3.7109099999999997	3.7383699999999997
8 h after light	3.7301699999999998	3.6735	3.78714
12 h after light	3.7535033333333336	3.6344800000000004	3.9342
4 h after dark	3.7912033333333333	3.76318	3.8263199999999995
8 h after dark	3.7590833333333333	3.72672	3.81095
12 h after dark	3.678316666666667	3.6147400000000003	3.7310300000000005