59% (2002)

40% (2008)

46% (2008)

47% (2006)

40% (2005)

46% (2002)

59% (2009)

41% (2008)

52% (2006)

49% (2007)

40% (1998)

33% (1998)

52% (2008)

77% (2002)

38% (2003)

56% (2006)

60% (1998)

44% (2008)

61% (2008)

0% (1997)