54% (2004)

49% (2005)

38% (1998)

62% (2006)

53% (2005)

48% (2003)

43% (1999)

56% (2000)

41% (1999)

56% (1996)

38% (1997)

55% (2008)

45% (1995)

47% (1997)

38% (1994)

40% (1994)

55% (1999)

0% (2000)

15% (2000)

0% (1999)