30% (2020)

41% (2000)

67% (1975)

20% (1971)

61% (1960)

59% (2009)

77% (2018)

44% (1991)

47% (1988)

49% (1973)

68% (2005)

51% (2019)

53% (2018)

55% (2016)

56% (2016)

52% (2008)

70% (1960)

58% (2021)

51% (2013)

59% (2011)