60% (1986)

49% (1993)

65% (1991)

59% (1992)

61% (2014)

58% (1996)

56% (2018)

60% (2001)

67% (1964)

56% (1990)

64% (1986)

74% (2010)

60% (1956)

61% (1964)

54% (1996)

55% (1984)

65% (1953)

63% (1938)

43% (2002)

41% (1938)