64% (1993)

82% (2005)

60% (2013)

57% (2000)

47% (1997)

72% (2010)

68% (2005)

83% (2006)

71% (2013)

70% (1991)

84% (1997)

80% (1997)

65% (2012)

68% (1992)

84% (1989)

77% (2009)

75% (2025)

0% (2001)

81% (2005)

61% (1998)