65% (1992)

74% (1993)

70% (1990)

61% (1993)

59% (1993)

63% (1986)

70% (1996)

65% (1987)

48% (1995)

43% (1988)

67% (1989)

38% (1980)

69% (1994)

70% (1989)

72% (1987)

51% (2006)

57% (1993)

65% (1992)

0% (1994)

75% (1986)