76% (2000)

82% (2005)

64% (2003)

48% (2001)

53% (2009)

57% (2014)

61% (2001)

65% (1999)

54% (2000)

72% (2003)

55% (2006)

61% (2001)

62% (2007)

59% (2008)

48% (2002)