68% (1994)

63% (2022)

62% (2021)

56% (1983)

63% (2020)

58% (2024)

59% (2005)

53% (2016)

66% (2015)

52% (1980)

72% (2012)

73% (2010)

59% (2009)

60% (1975)

52% (2021)

61% (1997)

64% (2016)

67% (1995)

68% (1994)

67% (2006)