53% (2020)

61% (2019)

54% (2011)

64% (1987)

62% (1971)

54% (1989)

46% (1986)

67% (1974)

63% (1995)

63% (2010)

62% (1991)

67% (1996)

64% (2017)

46% (1997)

71% (2013)

61% (1959)

54% (1997)

59% (2019)

56% (2018)

67% (1987)