66% (2020)

63% (2017)

72% (2016)

69% (2018)

67% (2016)

50% (2007)

64% (2010)

63% (2019)

73% (2020)

63% (1996)

33% (1993)

69% (1993)

51% (1986)

63% (1947)

62% (1988)

61% (1974)

57% (2002)

63% (2014)

52% (1996)

68% (1974)