68% (1954)

70% (1986)

72% (1993)

40% (1968)

50% (1956)

0% (1956)

80% (1958)

30% (1962)

63% (2010)

0% (1966)

60% (1988)

0% (1964)

60% (1987)

53% (1983)

0% (1967)

60% (1961)

55% (1987)

45% (2009)

0% (1994)

0% (1985)