62% (1992)

55% (1993)

72% (2007)

49% (2009)

65% (2004)

63% (2001)

44% (2009)

43% (2006)

60% (2012)

42% (1993)

0% (2012)

0% (2001)

70% (2006)

58% (2004)

0% (2009)