60% (1971)

0% (1969)

61% (1994)

0% (1970)

58% (1994)

0% (1975)

72% (1998)

67% (2000)

0% (1973)

62% (1972)

0% (1980)

70% (1973)

80% (1974)

0% (1972)

20% (1978)

75% (1980)

51% (2008)

57% (1972)

60% (1987)

78% (1967)