47% (1995)

48% (1994)

36% (1994)

61% (1991)

53% (1995)

48% (1989)

45% (1990)

58% (1993)

56% (1996)

43% (1991)

54% (1996)

52% (1994)

48% (1991)

50% (1994)

50% (1994)

62% (1989)

71% (1994)

40% (1992)

0% (1993)

42% (1994)