73% (2003)

59% (2003)

0% (1987)

0% (1979)

0% (2002)

54% (1999)

75% (1990)

70% (1987)

60% (1979)

40% (2004)

0% (1981)

0% (1982)

0% (1969)

0% (1974)

0% (2006)

0% (1980)

70% (1999)

85% (1973)

75% (1993)

20% (2004)