60% (2005)

68% (1952)

45% (2003)

50% (2001)

60% (1998)

50% (1994)

70% (1992)

76% (2015)

62% (1970)

60% (1957)

69% (2015)

74% (2004)

65% (2002)

65% (1955)

20% (1999)

59% (1986)

60% (1995)

68% (1999)

0% (1974)

0% (2007)