46% (1995)

63% (1988)

46% (1995)

67% (1990)

58% (1993)

62% (1994)

45% (1990)

52% (1995)

51% (1995)

49% (1993)

48% (1994)

48% (1994)

45% (1994)

49% (1995)

50% (1996)

41% (1994)

52% (1996)

49% (1995)

33% (1996)

48% (1995)