condition	mean	min	max
4 h after light	6.280454333333333	4.695606	7.6374949999999995
8 h after light	7.616049666666666	6.2171650000000005	10.066469999999999
12 h after light	13.79887	12.34331	15.18085
16 h after light	7.7036706666666666	3.053227	11.78244
4 h after dark	17.714963333333333	16.70488	19.48078
8 h after dark	6.997340666666666	5.0294669999999995	9.848042999999999