49% (1994)

64% (1991)

73% (1990)

63% (1994)

62% (1992)

40% (1990)

67% (1992)

63% (1993)

58% (1996)

52% (1992)

52% (1992)

62% (1990)

51% (1991)

74% (1990)

45% (1994)

47% (1991)

58% (1995)

0% (1987)

0% (1991)

47% (1993)