54% (1977)

48% (1997)

77% (1974)

64% (2012)

49% (2002)

58% (2009)

74% (2017)

61% (1971)

62% (2018)

49% (1996)

55% (2003)

45% (2010)

27% (1979)

68% (2002)

54% (2002)

40% (1998)

36% (1997)

56% (1983)

62% (2019)

59% (2010)