73% (1989)

0% (1977)

71% (1978)

78% (1971)

67% (1973)

34% (2004)

30% (2008)

60% (1965)

77% (1975)

28% (2010)

70% (1975)

81% (1976)

0% (1969)

59% (1973)

66% (1988)

50% (1972)

0% (1974)

79% (1977)

62% (1977)

55% (1970)