45% (1999)

64% (1997)

42% (2003)

46% (1998)

50% (2007)

61% (1999)

0% (1996)

56% (1985)

0% (2002)

70% (2006)

71% (2002)

45% (2002)

53% (1996)

69% (1999)

72% (1987)

59% (1994)

69% (1992)

0% (1985)

63% (2002)

67% (1999)