71% (1993)

72% (1986)

79% (1996)

66% (2019)

60% (1987)

72% (2004)

50% (1981)

59% (1979)

62% (1990)

73% (1989)

62% (1997)

20% (2000)

50% (1984)

56% (1987)

80% (1973)

72% (2003)

100% (2002)

60% (2000)

70% (2010)

80% (1995)