62% (2001)

45% (2009)

67% (2003)

59% (2011)

62% (2006)

49% (1984)

50% (2011)

65% (2018)

59% (1998)

37% (2004)

59% (2002)

35% (1987)

62% (1964)

48% (1984)

62% (1980)

58% (1974)

71% (1999)

77% (1948)

57% (1949)

54% (1949)