78% (2003)

72% (2011)

66% (2009)

76% (2002)

71% (1998)

67% (2006)

58% (1992)

70% (2000)

62% (2009)

64% (2003)

70% (2013)

69% (2005)

43% (2005)

58% (2005)

54% (2007)

70% (2000)

57% (2005)

58% (2012)

59% (2023)

50% (2007)