68% (1985)

59% (2011)

70% (2022)

54% (2021)

69% (1991)

57% (1975)

69% (1978)

58% (2004)

56% (1988)

64% (2009)

62% (2023)

62% (2016)

70% (2014)

65% (1983)

62% (2005)

69% (2016)

63% (2004)

71% (2022)

60% (2021)

79% (2019)