67% (1987)

56% (1993)

69% (2006)

58% (2016)

58% (1995)

55% (2002)

71% (2004)

59% (1983)

56% (1999)

64% (1978)

58% (2001)

62% (1975)

90% (2023)

66% (1997)

58% (1992)

55% (1989)

60% (2007)

0% (1990)

50% (1995)

80% (2012)