67% (1997)

63% (2012)

66% (1997)

74% (2008)

67% (2005)

71% (2015)

71% (2022)

65% (2010)

74% (1981)

48% (1993)

80% (1999)

65% (2022)

61% (2023)

69% (2007)

72% (2013)

54% (1993)

60% (1990)

76% (2004)

67% (1979)

58% (2005)