20% (1975)

50% (1973)

71% (2020)

20% (1973)

38% (1988)

80% (1978)

52% (2011)

41% (2000)

47% (2002)

50% (1965)

50% (1965)

70% (1958)

0% (1962)

67% (2003)

30% (1991)

20% (2007)

63% (1950)

0% (2012)

75% (1957)

20% (2005)