44% (1998)

39% (2004)

55% (2010)

54% (2011)

42% (2013)

58% (2011)

62% (2001)

55% (2005)

46% (1997)

35% (2000)

49% (2009)

45% (2011)

0% (1999)

0% (2003)

34% (2011)

34% (2008)

45% (2003)

0% (1998)

0% (2000)

28% (2009)