condition	mean	min	max
4 h after light	7.234999999999999	6.52	7.765
8 h after light	7.062222222	6.043333333	8.553333333
12 h after light	6.616666666666667	5.9	7.25
1.5 h after dark	6.180000000000001	4.9	7.15
5.5 h after dark	5.297777778	3.23	6.456666667
9.5 h after dark	7.91	6.5	8.93