condition	mean	min	max
4 h after light	8.21815	8.14027	8.27647
8 h after light	7.987096666666667	7.78862	8.24173
12 h after light	7.7092133333333335	7.50525	7.9192800000000005
4 h after dark	7.6373999999999995	7.46638	7.73153
8 h after dark	7.598106666666666	7.49063	7.74804
12 h after dark	7.733890000000001	7.561660000000001	7.989660000000001