69% (1967)

57% (1999)

56% (1989)

68% (2014)

53% (2002)

71% (1948)

63% (1968)

67% (1976)

42% (2000)

57% (1955)

55% (2002)

59% (2006)

43% (1983)

60% (1996)

65% (1998)

61% (2023)

51% (1990)

68% (1987)

57% (1996)

61% (1984)