The current United States dime contains President Franklin D. Roosevelt's face. Roosevelt was the 32nd President of the United States, and was in office from 1933-1945. If you do the math on that he was in office for 12 years. Roosevelt served 3 terms, before the 80th Congress created an amendment allowing US Presidents to server for just 2.
If you want some stats on the mintage, melt values, numismatic values, and much more regarding the Roosevelt dimes just choose a link below.