52% (2004)

67% (2007)

49% (2002)

64% (1978)

63% (1972)

63% (2013)

67% (2010)

69% (1987)

55% (1991)

65% (2010)

60% (1996)

69% (1991)

64% (1996)

59% (2019)

53% (1975)

58% (1989)

56% (1993)

68% (1986)

73% (1987)

59% (1974)