Which continent has hosted the most Olympic games?

Summer Olympic sites by continent:

Europe: (15) 1896, 1900, 1908, 1912, 1920, 1924, 1928, 1936, 1948, 1952, 1960, 1972, 1984, 1992, 2004

North/South America: (6) 1904, 1932, 1968, 1976, 1980, 1996

Asia: (3) 1964, 1988, 2008

Australia: (2) 1956, 2000

There has never been a Summer Olympics held in Africa.

Winter Olympic sites by continent:

Europe: (12) 1924, 1928, 1936, 1948, 1952, 1956, 1968, 1976, 1984, 1992, 1994, 2006

North/South America: (6) 1932, 1960, 1980, 1988, 2002, 2010

Asia: (2) 1972, 1998

There has never been a Winter Olympics held in Africa or Australia.