76% (1997)

75% (2011)

76% (2012)

67% (1964)

0% (2021)

60% (1980)

59% (1986)

79% (1963)

75% (1996)

75% (2013)

75% (2002)

83% (2005)

61% (1989)

72% (1990)

76% (2002)

70% (1962)

80% (1988)

46% (2000)

61% (1953)

76% (1994)