George Washington appointed the highest number of justices at 11, followed closely by Franklin Roosevelt with 9. But four presidents did not appoint any justices at all: William Henry Harrison and Zachary Taylor, who died soon after their inaugurations; Jimmy Carter, who served four years in office without any vacancies; and Andrew Johnson, whose nominee failed when Congress decided to reduce the number of court seats.

Another way to measure presidents’ influence on the Court is to count the number of years their appointees are on the bench. TIME recently ranked all the United States presidents by their nominees’ combined years of service. 

By this metric, Franklin Roosevelt had the most impact on the Supreme Court, with over 140 years of influence. John Quincy Adams had the least, since his only appointed justice served for only 2 years.