condition	mean	min	max
4 h after light	4.469200000000001	4.05128	4.88712
8 h after light	4.094555	3.82589	4.36322
12 h after light	4.88173	4.60114	5.16232
4 h after dark	6.627585	6.54941	6.70576
8 h after dark	6.878425	6.78572	6.97113
12 h after dark	6.87953	6.81027	6.94879