61% (1982)

70% (2021)

75% (2022)

71% (1990)

72% (2000)

65% (2024)

57% (2004)

63% (2023)

63% (2008)

57% (2012)

56% (2009)

66% (2007)

77% (1976)

54% (2021)

60% (2020)

67% (2018)

62% (2012)

73% (2009)

71% (1983)

67% (1996)