67% (2004)

76% (2003)

80% (2009)

60% (2001)

70% (2010)

47% (2002)

72% (2007)

71% (2003)

63% (2009)

66% (1999)

61% (2000)

61% (2003)

68% (2000)

75% (2010)

52% (2001)

71% (2013)

66% (2004)

70% (2005)

69% (2001)

62% (2004)