condition	mean	min	max
4 h after light	17.494632	14.139653	20.849611
8 h after light	20.532608	19.997598	21.067618
12 h after light	21.852477	20.964886	22.740068
4 h after dark	21.446929500000003	20.533346	22.360513
8 h after dark	14.5577745	14.273151	14.842398
12 h after dark	15.100916	15.100916	15.100916