59% (2005)

43% (2002)

42% (2004)

38% (2001)

34% (1999)

46% (2004)

61% (2003)

51% (2003)

48% (2013)

47% (2005)

33% (2004)

51% (2003)

59% (2006)

31% (2000)

50% (2009)

35% (2003)

40% (2004)

67% (2000)

63% (2007)

0% (2000)