67% (2003)

76% (1986)

68% (1986)

67% (1983)

77% (1986)

74% (1990)

54% (1994)

58% (2003)

68% (1993)

61% (2012)

69% (1988)

57% (1996)

57% (1991)

72% (1991)

67% (1986)

65% (1989)

53% (1999)

47% (2005)

70% (1990)

58% (2009)