2.0 4.220 +/- .005 1.8 3.819 +/- .005 1.6 3.415 +/- .005 1.4 3.010 +/- .004 1.2 2.604 +/- .004 1.0 2.201 +/- .003 0.8 1.794 +/- .003 0.6 1.387 +/- .003 0.4 0.981 +/- .002 o.2 0.578 +/- .001 0 0.185 +/- .001