condition	mean	min	max
4 h after light	1.1943125	0.738925	1.6497
8 h after light	2.728575	2.43882	3.01833
12 h after light	2.267735	1.82793	2.70754
4 h after dark	3.777885	3.26861	4.28716
8 h after dark	1.71318	1.57462	1.85174
12 h after dark	1.494065	1.43792	1.55021