56% (2007)

30% (1997)

58% (1984)

76% (1968)

37% (1977)

59% (2007)

57% (2019)

54% (2004)

44% (2014)

45% (2000)

53% (2019)

69% (1964)

43% (2017)

42% (1986)

43% (2002)

51% (2014)

56% (2009)

64% (2007)

77% (2019)

34% (2005)