condition	mean	min	max
4 h after light	5.067186666666666	4.9397199999999994	5.20883
8 h after light	5.0873099999999996	4.9577	5.274369999999999
12 h after light	4.930136666666667	4.79858	5.05855
4 h after dark	4.9921066666666665	4.87311	5.0769
8 h after dark	5.047076666666667	4.698980000000001	5.2613900000000005
12 h after dark	4.99967	4.95742	5.04341