62% (1968)

65% (1977)

22% (1992)

60% (1987)

61% (1991)

47% (2011)

60% (1991)

55% (1976)

64% (1992)

62% (1980)

72% (1994)

0% (1949)

55% (1991)

49% (1965)

63% (1976)

0% (2007)

46% (1993)

53% (2010)

63% (2011)

62% (2018)