79% (1988)

71% (1992)

78% (2002)

64% (2010)

58% (1999)

72% (2000)

67% (2007)

74% (2006)

59% (2023)

54% (1999)

55% (2010)

66% (2021)

70% (2017)

74% (2004)

69% (2007)

72% (2008)

67% (2004)

63% (2010)

62% (2018)

68% (2014)