71% (2022)

69% (2024)

53% (2016)

79% (2020)

70% (2017)

70% (2019)

55% (2014)

65% (1989)

52% (2017)

63% (2022)

66% (2005)

61% (1975)

68% (2007)

70% (2012)

69% (1993)

73% (2012)

61% (2016)

56% (1964)

67% (1974)

60% (2003)