Calculations for the design statistics for Calculate Gap Pools

TermDescription
%Y.FTiFirst time yield (in %) for the ith element
%Y.FTGap First time yield (in %) for the gap
%Y.RTDesign Rolled throughput yield (in %) for the design

Where M is the total number of elements in the design with nonzero variance, and the sum is over elements with nonzero standard deviation.