64% (2021)

59% (2020)

57% (2019)

59% (2015)

59% (2019)

70% (1997)

69% (2015)

72% (2004)

53% (1998)

55% (2016)

63% (2018)

66% (1975)

58% (2015)

66% (1929)

65% (2000)

64% (2004)

67% (1991)

57% (2010)

62% (1971)

62% (2021)