57% (1971)

55% (2019)

51% (1974)

63% (1972)

35% (1963)

41% (1968)

49% (1976)

49% (2010)

57% (1978)

48% (2007)

61% (1988)

59% (1966)

50% (1989)

43% (1993)

73% (2013)

53% (2002)

58% (2023)

55% (1970)

65% (2004)

86% (2018)