68% (1981)

39% (2009)

77% (2023)

70% (1992)

77% (2023)

79% (1997)

82% (2024)

72% (2019)

57% (2015)

63% (2008)

68% (1968)

59% (2010)

56% (2023)

61% (2008)

67% (2022)

71% (2020)

67% (2011)

59% (2009)

75% (2024)

60% (2013)