67% (1985)

63% (2015)

68% (2021)

71% (2023)

62% (2010)

63% (2009)

58% (2013)

67% (2022)

58% (2007)

64% (1981)

63% (2023)

53% (2019)

63% (1982)

62% (2018)

53% (1997)

78% (1979)

64% (2020)

78% (2010)

58% (1981)

49% (2016)