52% (2021)

64% (1987)

77% (2020)

65% (2013)

64% (2011)

68% (2018)

54% (2011)

60% (1991)

71% (2020)

55% (2009)

69% (1970)

64% (2003)

70% (2006)

74% (1964)

68% (1953)

66% (2007)

73% (1991)

55% (2003)

72% (1976)

65% (2001)