+$opt{report} //= join('',
+ '${partsum+; $_ .= " of "}',
+ '${sum+; color(1); $_ .= " total in "}',
+ '${count#} values',
+ '${lines#; $_ = $_ != @order && " over $_ lines"}',
+ sprintf('${count: (%s)}', join ', ',
+ '${min; color(31)} min',
+ '${avg; $opt{reformat} or $_ = sprintf "%0.2f", $_; color(36)} avg',
+ '${max; color(32)} max',
+ ),
+);