77% (2006)

60% (1974)

72% (1970)

73% (1959)

56% (2018)

73% (2002)

62% (2005)

79% (2017)

67% (2019)

64% (2015)

54% (2021)

65% (1978)

51% (1979)

63% (2012)

51% (2020)

51% (2013)

52% (1976)

72% (1977)

63% (1999)

60% (1999)