0% (1995)

10% (1992)

60% (1988)

68% (1988)

75% (1994)

68% (1994)

51% (1988)

60% (1999)

54% (1998)

73% (1987)

72% (1989)

51% (1989)

65% (1996)

50% (1993)

65% (1989)

47% (1993)

58% (1995)

73% (1989)

62% (1992)

68% (1989)