Claim: There is a total of 18 Gubernatorial elections in Pennsylvania from 1950 to 2018, which happened every four years.
Evidence: 1950 1954 1958 1962 1966 1970 1974 1978 1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 
1950 1954 1958 1962 1966 1970 1974 1978 1982 1986 1990 1994 2002 2006 2010 2014 2018