68% (2024)

71% (2021)

73% (2007)

63% (2005)

78% (1985)

72% (1983)

64% (1993)

68% (2004)

62% (1997)

73% (1981)

68% (2004)

62% (2020)

70% (2019)

71% (2017)

69% (1992)

59% (2016)

45% (1997)

57% (2019)

63% (2018)

74% (2014)