40% (2008)

59% (2002)

46% (2008)

47% (2006)

40% (2005)

46% (2002)

59% (2009)

52% (2006)

33% (1998)

40% (1998)

43% (2008)

56% (2006)

41% (2008)

38% (2003)

52% (2008)

77% (2002)

60% (1996)

60% (1998)

49% (2007)

60% (2008)