76% (2015)

65% (2020)

68% (2005)

59% (2011)

83% (2013)

60% (2001)

53% (2019)

69% (1976)

68% (2013)

69% (2008)

72% (1960)

60% (1949)

62% (1996)

56% (1971)

69% (2021)

53% (2023)

74% (1964)

72% (2011)

73% (1989)

62% (2024)