69% (2023)

56% (1967)

73% (2021)

64% (2013)

70% (2009)

80% (2009)

72% (1997)

70% (1993)

81% (1988)

76% (2020)

68% (1994)

70% (1990)

66% (2015)

61% (2009)

72% (2017)

66% (2011)

61% (2023)

0% (1970)

57% (2003)

55% (2016)