61% (1986)

0% (1970)

41% (1984)

54% (1989)

62% (1996)

45% (1984)

55% (1993)

63% (2001)

57% (1987)

62% (1987)

62% (1986)

42% (1988)

50% (1986)

54% (1995)

53% (1984)

43% (1986)

68% (1989)

56% (1990)

68% (1987)

63% (1986)