10% (1989)

83% (1989)

69% (1997)

65% (1997)

57% (1996)

60% (1989)

53% (1996)

44% (1988)

51% (1988)

49% (1996)

62% (1994)

54% (1996)

53% (1987)

74% (1988)

61% (1995)

45% (1993)

62% (1990)

45% (1995)

50% (1994)

73% (1989)