50% (1980)

66% (2008)

55% (1971)

28% (1960)

50% (1955)

51% (1997)

62% (1991)

59% (1998)

62% (1957)

65% (2017)

60% (1959)

50% (1978)

100% (2002)

87% (1957)

50% (1982)

65% (1977)

68% (2001)

80% (1957)

77% (1966)

50% (2014)