67% (1990)

49% (1995)

58% (1993)

51% (1995)

46% (1995)

46% (1990)

62% (1994)

40% (1993)

48% (1994)

41% (1994)

45% (1995)

52% (1995)

65% (1991)

65% (1996)

45% (1993)

25% (1992)

45% (1994)

40% (1992)

51% (1995)

49% (1993)