20% (1998)

76% (2007)

81% (2005)

51% (1995)

73% (1998)

76% (2006)

85% (2017)

85% (2002)

20% (2004)

20% (1997)

60% (2014)

53% (2016)

62% (2003)

20% (2017)

0% (2009)

0% (2008)

55% (2000)

79% (2011)

69% (2012)

20% (2004)