76% (2002)

67% (2009)

78% (2003)

72% (1998)

72% (2011)

66% (2006)

69% (2005)

62% (2009)

71% (2000)

58% (2004)

70% (2013)

63% (2003)

43% (2005)

46% (2010)

63% (2000)

59% (1992)

58% (2005)

43% (2005)

70% (2000)

53% (2007)