20% (1978)

64% (2001)

52% (1977)

53% (1992)

72% (1986)

62% (1993)

68% (1977)

69% (1979)

0% (1988)

44% (1980)

62% (2023)

20% (1998)

70% (1989)

59% (1983)

63% (1976)

61% (1998)

43% (2001)

48% (2008)

66% (1982)

73% (2000)