76% (1996)

49% (1970)

56% (1964)

30% (1961)

47% (2003)

71% (1967)

60% (1964)

55% (1959)

0% (1969)

50% (1967)

40% (1957)

50% (1953)

80% (1961)

70% (1966)

62% (1930)

0% (1970)

65% (1966)

30% (1968)

0% (1969)

50% (1990)