71% (2024)

65% (2023)

69% (2019)

64% (2016)

73% (1974)

54% (2014)

72% (2023)

61% (2014)

72% (2002)

65% (2013)

78% (2011)

55% (2004)

53% (2024)

68% (2022)

73% (2022)

65% (2010)

62% (2024)

69% (2018)

53% (2009)

62% (2005)