76% (1996)

49% (1970)

30% (1961)

71% (1967)

50% (1967)

60% (1962)

0% (1969)

46% (2003)

50% (1990)

50% (1953)

60% (1964)

40% (1957)

55% (1964)

0% (1992)

35% (1968)

68% (1991)

30% (1968)

55% (1959)

70% (1966)

62% (1930)