10% (1991)

50% (1992)

60% (1979)

45% (2005)

38% (1999)

63% (1988)

40% (1978)

0% (2006)

57% (1999)

30% (1994)

0% (1979)

70% (1972)

50% (1979)

60% (1978)

56% (1991)

82% (1973)

67% (1975)

72% (1975)

80% (1972)

30% (1985)