60% (1999)

60% (1960)

40% (2002)

5% (1933)

20% (1932)

60% (1931)

50% (1927)

0% (1951)

70% (1951)

50% (1974)

0% (1928)

50% (1962)

80% (1957)

70% (1937)

70% (1947)

20% (1983)

0% (1997)

50% (1938)

60% (1963)

60% (1919)