74% (2007)

66% (2010)

80% (2009)

20% (2008)

60% (1999)

49% (2009)

55% (2007)

51% (1994)

75% (2012)

47% (2004)

60% (2015)

100% (2015)

58% (2012)

48% (1992)

0% (2003)

0% (2005)