condition	mean	min	max
4 h after light	8.4406335	7.777476	9.103791
8 h after light	8.55724	8.55724	8.55724
12 h after light	8.569893	8.55724	8.582546
4 h after dark	8.848075999999999	8.55724	9.138912
8 h after dark	8.754415999999999	8.176562	9.33227
12 h after dark	8.952085	8.952085	8.952085