68% (2020)

49% (2014)

54% (2004)

62% (2020)

63% (2011)

41% (1981)

68% (2020)

71% (2005)

59% (2004)

75% (2019)

58% (2019)

50% (1997)

65% (1970)

59% (1988)

56% (2008)

52% (1992)

47% (2018)

58% (2005)

62% (1993)

52% (2017)