condition	mean	min	max
4 h after light	7.96934	7.670719999999999	8.439110000000001
8 h after light	6.641326666666667	6.3097199999999996	7.121460000000001
12 h after light	5.861723333333334	5.48833	6.45591
4 h after dark	7.352189999999999	6.933889999999999	7.9067
8 h after dark	8.134603333333333	7.58517	8.558
12 h after dark	9.15613	8.71767	9.925089999999999