57% (1981)

56% (2014)

54% (2018)

63% (2020)

53% (2023)

65% (1991)

73% (2022)

63% (2017)

46% (2013)

66% (1993)

64% (2023)

70% (2012)

62% (2024)

40% (2013)

65% (2008)

66% (2008)

68% (2023)

59% (1996)

77% (2009)

76% (2006)