66% (2000)

75% (1986)

69% (2024)

58% (2021)

73% (2020)

61% (2020)

63% (2018)

59% (2015)

77% (2013)

77% (2012)

70% (2010)

51% (2009)

71% (2006)

65% (2005)

68% (1988)

64% (2004)

49% (1996)

71% (1985)

68% (1976)

64% (1998)