query: #Number of items/statements using qualifer P2315 for each property
  #added 2016-02-24 by Jura1 
  
  SELECT ?property ?propertyLabel ?items ?statements
  WHERE
  {
  	{
  		SELECT ?property (COUNT(DISTINCT(?item)) as ?items) (COUNT(?value) as ?statements)
  		WHERE
  		{
      		?prop pq:P2315 ?qualifierP2315value .
    			hint:Query hint:optimizer "None" .	
  			?item ?p ?prop . 
  			?property wikibase:claim ?p .  
    			?property wikibase:statementProperty ?ps .
      		?prop ?ps ?value .      
  		}
  		GROUP BY ?property 
  		ORDER BY DESC(?items) DESC(?statements)
  		LIMIT 25
  	}
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en,en"  }    
  }
  ORDER BY DESC(?items) DESC(?statements)
  
  
  