69% (1981)

0% (2010)

75% (2019)

70% (2014)

68% (2005)

0% (2013)

78% (2008)

67% (2013)

76% (1996)

70% (2000)

46% (2009)

79% (1999)

82% (1989)

90% (1970)

76% (1984)

82% (2007)

80% (1994)

84% (2019)

77% (2003)

60% (1974)