<page_title> List of Major League Baseball annual runs batted in leaders </page_title> <section_title> American League </section_title> <table> <cell> 1921 <col_header> Year </col_header> </cell> <cell> Babe Ruth† <col_header> Winner(s) </col_header> </cell> <cell> 171 <col_header> RBI </col_header> </cell> </table>
Babe Ruth hit 171 in 1921.