-print "dwzsizeall =$dwzsizeall" ." dtsizeall=$dtsizeall =".$dwzsizeall /$dtsizeall."\n";
-print "dwzsizeduplall=$dwzsizeduplall"." dtsizeall=$dtsizeall =".$dwzsizeduplall/$dtsizeall."\n";
+print "dwzsizeall =$dwzsizeall" ." dtsizeall=$dtsizeall =".$dwzsizeall /$dtsizeall." avg=".List::Util::sum(@ratioall )/@ratioall ." stddev=".Statistics::Basic::stddev(\@ratioall )."\n";
+print "dwzsizeduplall=$dwzsizeduplall"." dtsizeall=$dtsizeall =".$dwzsizeduplall/$dtsizeall." avg=".List::Util::sum(@ratioduplall)/@ratioduplall." stddev=".Statistics::Basic::stddev(\@ratioduplall)."\n";