52% (1961)

57% (1966)

72% (2017)

57% (1959)

40% (1960)

60% (2013)

75% (1966)

60% (1958)

45% (1951)

50% (1963)

43% (1963)

66% (1957)

0% (1994)

25% (1964)

70% (1951)