82% (1995)

67% (1999)

60% (2009)

65% (1996)

76% (2005)

63% (2013)

67% (2008)

61% (2014)

69% (1995)

53% (2004)

66% (1997)

73% (2010)

70% (1993)

66% (1997)

67% (1998)

68% (2000)

69% (1999)

68% (1994)

62% (1994)

78% (2002)