60% (1957)

59% (2015)

45% (1993)

62% (1998)

49% (1952)

59% (1976)

70% (2001)

60% (1965)

64% (1966)

55% (2008)

0% (1970)

34% (1959)

70% (1973)

51% (1997)

59% (1954)

50% (2007)

43% (2008)

56% (1968)

66% (1987)

0% (2005)