<defined year="2012" variantMin="2" variantMax="2"/> 
<defined year="2013" variantMin="1" variantMax="1"/> 
<defined year="2014" variantMin="2" variantMax="2"/> 
<defined year="2015" variantMin="1" variantMax="1"/>
<defined year="2016" variantMin="2" variantMax="2"/>  