condition	mean	min	max
4 h after light	2.40481	1.89112	2.9185
8 h after light	4.012495	3.48185	4.54314
12 h after light	4.38666	4.18595	4.58737
4 h after dark	7.580896666666667	7.02068	8.0371
8 h after dark	5.50938	5.19251	6.02093
12 h after dark	4.574586666666667	4.15835	5.36245