51% (2003)

85% (2011)

77% (2000)

59% (2016)

65% (2013)

73% (1988)

59% (1952)

85% (2011)

67% (1989)

86% (2018)

71% (2010)

60% (2009)

79% (2014)

78% (2010)

84% (2009)

56% (1950)

71% (1969)

63% (1999)

83% (2005)

70% (1959)