82% (1995)

53% (2004)

67% (1999)

63% (2013)

66% (1997)

67% (1994)

65% (1996)

68% (2000)

69% (1993)

66% (1997)

76% (2005)

67% (1998)

69% (1999)

63% (2005)

60% (2004)

50% (2010)

60% (2009)

62% (1994)

56% (2000)

73% (2010)