64% (1990)

59% (1981)

34% (1994)

47% (2017)

60% (1991)

68% (1988)

60% (1993)

68% (1991)

56% (1984)

66% (1991)

49% (1994)

61% (1997)

61% (1981)

68% (1979)

75% (1983)

60% (1987)

50% (1987)

61% (1992)

62% (1980)

65% (1997)