condition	mean	min	max
4 h after light	8.224818500000001	7.773989	8.675648
8 h after light	8.1380095	7.960883	8.315136
12 h after light	8.688833	8.16965	9.208016
4 h after dark	7.519453	7.47796	7.560946
8 h after dark	7.9632345	7.941338	7.985131
12 h after dark	7.277302	7.277302	7.277302