65% (1976)

45% (1983)

63% (1976)

42% (1983)

65% (1990)

67% (1979)

62% (1972)

69% (1990)

70% (2003)

52% (1989)

57% (2009)

62% (1978)

74% (2021)

55% (1992)

48% (1992)

62% (2023)

51% (1980)

62% (1987)

48% (1989)

66% (1996)