condition	mean	min	max
4 h after light	8.668743333333333	8.45055	8.81995
8 h after light	8.6855	8.51914	8.78689
12 h after light	8.611866666666666	8.54252	8.72996
4 h after dark	8.93402	8.667819999999999	9.153080000000001
8 h after dark	8.848040000000001	8.76777	8.94177
12 h after dark	8.965723333333333	8.84929	9.0252