64% (2000)

58% (2001)

74% (1996)

49% (2013)

60% (2003)

58% (2014)

55% (2006)

65% (2011)

60% (2000)

62% (2007)

65% (1997)

55% (2005)

75% (2005)

77% (2001)

69% (2007)

52% (2003)

70% (1996)

52% (1995)

62% (2005)

53% (2009)