In what year did Kim Jong-un became the head of the government in North Korea?
2011
2012
2012
2012
2012
2012
2012
2012
2012
2011
2012
2011
2012
2011
2012
2011
2013
2012
2011
2013
2012
2011
2013
2012
2011
2013
2012
2011
2013
2009
2012
2008
2011
2013
2009
2012
2008
2017
2011
2013
2009
2012
2008
2017
2011
2013
2009
2012
2008
2017
2011
2013
2009
2012
2008
2017
2011
2016
2013
2009
2010
2008
2017
2011
2016
2013
2009
2010
2008
2017
2011
2016
2014
2013
2009
2010
2008
2017
2018
2011
2016
2014
2013
2009
2010
2008
2017
2015
2018
2011
2016
2014
2013
2009
2010
2008
2017
2015
2018
2011
2016
2014
2013
2009
2010
2008
2017
2015
2018
2011
2016
2002
2014
2013
2009
2010
2008
2017
2015
2018
2011
2016
2002
2014
2013
2009
2007
2010
2008
2017
2015
2018
2016
2002
2014
2013
2009
2005
2007
2010
2008
2017
2015
2018
2016
2002
2014
2013
2009
2005
2007
2010
2008
2017
2015
2018
2016
2002
2014
2013
2009
2005
2007
2010
2006
2008
2017
2015
2018
2016
2002
2014
2009
2005
2001
2007
2010
2006
2008
2017
2015
2018
2016
2002
2014
2009
2005
2001
2007
2010
2006
2008
2017
2015
2018
2012.
2012.
2012.
2012,
2012.
2012.