68% (1987)

63% (2001)

50% (1997)

50% (1980)

68% (1994)

62% (1986)

54% (2003)

85% (1980)

65% (1989)

70% (1985)

75% (1995)

53% (1978)

38% (1992)

71% (2001)

65% (1992)

0% (1987)

90% (2016)

40% (1981)

54% (1979)

42% (1991)