61% (2001)

67% (2003)

70% (1993)

78% (1948)

45% (2009)

62% (1980)

71% (1999)

58% (1998)

75% (1951)

62% (1952)

37% (2004)

59% (2011)

67% (2016)

59% (2002)

49% (2011)

51% (2000)

55% (1995)

62% (2006)

62% (2000)

53% (1984)