condition	mean	min	max
4 h after light	9.711076	9.654047	9.768105
8 h after light	8.8798645	8.573861	9.185868
12 h after light	8.407120500000001	7.830268	8.983973
4 h after dark	8.975903	8.967833	8.983973
8 h after dark	9.888871	9.824836	9.952906
12 h after dark	8.547809	8.547809	8.547809