49% (2008)

35% (2006)

0% (2001)

45% (2007)

20% (2010)

50% (2004)

42% (2006)

0% (2012)

70% (1993)

47% (2008)

43% (2010)

0% (2011)

45% (2011)

0% (2011)

69% (2010)

48% (2008)

56% (2006)

0% (1997)

50% (2012)

0% (2007)