67% (2021)

68% (2020)

70% (1986)

56% (1997)

58% (2014)

58% (2002)

65% (1994)

69% (1986)

59% (2013)

64% (2003)

75% (2009)

66% (2007)

72% (2011)

73% (2000)

67% (1991)

56% (2002)

64% (1993)

58% (2016)

64% (2000)

64% (2015)