69% (2020)

64% (2017)

82% (1993)

65% (1992)

63% (1982)

30% (1998)

80% (2015)

68% (2018)

66% (1999)

68% (2001)

61% (1991)

76% (1983)

74% (1990)

56% (1997)

75% (1999)

62% (2009)

0% (1974)

0% (2011)

80% (1972)

18% (2007)