62% (1972)

0% (1977)

40% (1978)

42% (1987)

77% (2001)

20% (1984)

57% (2002)

56% (1991)

0% (2004)

72% (1975)

52% (1980)

0% (2002)

32% (1982)

47% (1974)

70% (1993)

80% (1969)

87% (1979)

82% (1973)

24% (1991)

64% (2001)