72% (1971)

66% (2019)

59% (2016)

58% (2024)

73% (1996)

65% (2015)

62% (2017)

68% (2005)

62% (1993)

59% (1997)

58% (1989)

67% (1998)

66% (2023)

67% (2004)

70% (2019)

64% (2008)

54% (1984)

63% (2010)

70% (2020)

54% (2010)