82% (1995)

53% (2004)

67% (1999)

70% (1993)

65% (1996)

68% (1999)

68% (2000)

64% (2005)

66% (1997)

66% (1997)

60% (2009)

60% (2004)

63% (2013)

66% (1994)

67% (1998)

77% (2005)

67% (2008)

50% (2010)

62% (1994)

73% (2010)