67% (2001)

0% (1993)

67% (1990)

56% (2000)

78% (1985)

68% (1988)

56% (1998)

63% (1990)

68% (1999)

47% (1988)

42% (1988)

56% (1986)

54% (1998)

39% (1987)

80% (1994)

50% (2000)

71% (1986)

60% (2008)

71% (1984)

0% (1997)