55% (1991)

70% (1989)

27% (1995)

66% (1981)

75% (1985)

59% (2002)

53% (1992)

0% (1982)

0% (1984)

36% (1997)

48% (1976)

23% (2012)

20% (1987)

0% (1993)

0% (1986)

70% (1980)

0% (1976)

47% (1994)

13% (1992)

0% (1994)