Precision of Listed Simulation Results?

Under Simulation/Options there's a check box, "List result quantities in higher precision."  SW Help says about this, "When checked, results are listed with up to 16-digit precision."  I have this box checked, yet the CSV files I get from Results/Define XX Plot.../List Selected generally have only a few digits of precision.  What am I doing wrong? -- John Willett

SolidworksSimulation