0% (1970)

63% (2011)

54% (2002)

60% (1997)

51% (2021)

65% (1991)

56% (2014)

45% (2014)

29% (2009)

61% (2008)

10% (2021)

70% (1987)

28% (1992)

62% (2003)

49% (2010)

63% (1979)

0% (1973)

38% (2005)

67% (1987)

58% (1951)