73% (2009)

76% (2011)

80% (2024)

62% (2016)

27% (1981)

49% (1975)

60% (2013)

63% (2013)

59% (2022)

67% (2009)

61% (2022)

63% (2016)

57% (2008)

71% (2004)

78% (2019)

70% (2014)

77% (1991)

63% (1998)

68% (1998)

61% (2005)