59% (1986)

67% (2011)

61% (2021)

62% (2014)

57% (2005)

68% (2015)

52% (1988)

66% (1964)

70% (1970)

45% (2023)

58% (1993)

72% (1997)

79% (1983)

55% (1969)

51% (2004)

73% (1987)

73% (2018)

49% (2001)

59% (2010)

71% (2009)