condition	mean	min	max
4 h after light	5.90081	5.56605	6.23557
8 h after light	6.3178	6.08681	6.54879
12 h after light	7.75381	7.2312	8.27642
4 h after dark	7.771725	7.07491	8.46854
8 h after dark	7.695385	7.31557	8.0752
12 h after dark	7.118615	6.51815	7.71908