69% (1996)

92% (1993)

0% (1998)

70% (1974)

60% (1991)

40% (1988)

85% (2008)

0% (1964)

0% (2002)

60% (1976)

50% (2001)

45% (2001)

0% (1995)

0% (1990)

65% (1973)

67% (2004)

0% (1976)

0% (1965)

0% (1966)

0% (2008)