85% (1994)

72% (1996)

79% (2007)

63% (2014)

76% (1997)

62% (1997)

58% (2007)

75% (2000)

63% (2001)

66% (1994)

61% (2004)

55% (2005)

67% (1998)

65% (1995)

62% (1992)

54% (1996)

72% (1999)

61% (1996)

71% (2004)

60% (2002)