0% (2006)

70% (1987)

63% (1969)

63% (1984)

71% (1960)

63% (2007)

48% (2011)

77% (1987)

88% (1998)

66% (2009)

73% (1963)

0% (2011)

70% (2005)

70% (1985)

0% (1989)

0% (1999)

65% (2005)

76% (2015)

72% (2003)

66% (2012)