condition	mean	min	max
4 h after light	3.0790699999999998	2.37423	3.78391
8 h after light	2.0936	2.07387	2.11333
12 h after light	2.02319	1.89896	2.14742
4 h after dark	2.4697750000000003	2.14819	2.79136
8 h after dark	1.86105	1.8168	1.9053
12 h after dark	2.98645	2.83872	3.13418