condition	mean	min	max
0 h after light	6.58605	6.50488	6.66722
4 h after light	7.712455	6.85932	8.56559
8 h after light	3.7805	3.718	3.843
4 h after dark	3.73562	3.08689	4.38435
8 h after dark	7.312595	6.85187	7.77332
12 h after dark	6.648005	4.57394	8.72207