56% (1967)

72% (2005)

59% (1999)

60% (2006)

63% (1957)

69% (1955)

69% (1997)

30% (2002)

60% (1964)

51% (2010)

40% (2002)

70% (2017)

50% (1952)

10% (1995)

0% (1997)

69% (1995)

47% (1997)

56% (1957)

95% (1992)

35% (1951)