1950: The American Fighting Man
1956: Hungarian Freedom Fighters
1960: US Scientists
1966: The Generation Twenty-Five and Under
1968: Apollo 8 Astronauts
1969: The Middle Americans
1975: American Women
1982: The Computer
1988: The Endangered Earth
1993: The Peacemakers
2002: The Whistle Blowers
2003: The American Soldier
2005: The Good Samaritans
2006: You
2011: The Protester
2013: The Ebola Fighters
2017: The Silence Breakers
Some of those were specific lists of people (US Scientists, American Women, Ebola Fighters, Peacemakers). There are also a few years where it went to 2 or 3 people but they weren't a named group.