condition	mean	min	max
4 h after light	4.60645	4.58437	4.64801
8 h after light	4.66711	4.595280000000001	4.7687800000000005
12 h after light	4.692613333333333	4.528169999999999	4.9867300000000006
4 h after dark	4.677036666666667	4.47351	4.87173
8 h after dark	4.633133333333333	4.51569	4.7971
12 h after dark	4.61766	4.55144	4.67589