52% (2004)

67% (2007)

49% (2002)

64% (1978)

67% (2010)

69% (1987)

55% (1991)

65% (2010)

60% (1996)

69% (1991)

64% (1996)

59% (2019)

56% (1993)

68% (1986)

73% (1987)

69% (1986)

68% (1990)

33% (1991)

60% (1993)

64% (1993)