75% (2004)

65% (2008)

58% (1999)

66% (2012)

70% (2004)

74% (2006)

64% (2010)

70% (2003)

70% (2010)

69% (2012)

70% (2009)

67% (2007)

42% (2009)

71% (2002)

53% (2001)

64% (2006)

50% (2000)

64% (2005)

72% (2000)

69% (2007)