71% (1993)

72% (1986)

79% (1996)

72% (2004)

59% (1987)

59% (1979)

62% (1990)

71% (1989)

62% (1997)

72% (2003)

20% (2000)

80% (1973)

50% (1981)

60% (2000)

66% (2019)

56% (1987)

100% (2002)

66% (2013)

85% (1969)

49% (1984)