35% (1970)

80% (1980)

47% (2009)

71% (2002)

56% (1960)

48% (1988)

45% (1953)

59% (1943)

70% (2016)

42% (1962)

50% (1962)

0% (1984)

0% (1970)

60% (1977)

57% (2011)

40% (2013)

45% (1960)

0% (1933)

63% (1956)

0% (2011)