45% (1999)

45% (1998)

64% (1997)

42% (2003)

0% (1996)

53% (1996)

69% (1999)

72% (1990)

45% (2002)

72% (1987)

71% (2002)

67% (1999)

61% (1999)

100% (1994)

52% (2005)

56% (1985)

69% (1992)

63% (2002)

10% (2002)

62% (2000)