condition	mean	min	max
4 h after light	8.629	8.49439	8.7785
8 h after light	8.924436666666667	8.770669999999999	9.08521
12 h after light	8.89078	8.70277	9.006689999999999
4 h after dark	8.813699999999999	8.667819999999999	8.93011
8 h after dark	8.764923333333334	8.68193	8.90038
12 h after dark	8.402656666666667	8.3172	8.47596