68% (2000)

71% (2002)

78% (2013)

68% (2009)

79% (2001)

61% (2023)

58% (2017)

68% (2006)

53% (2003)

64% (2010)

66% (1999)

74% (2006)

69% (2017)

67% (1997)

68% (2015)

76% (2007)

75% (1995)

65% (2005)

66% (1990)

71% (1988)