query: #defaultView:BubbleChart
  SELECT ?countryLabel (COUNT(?item) AS ?count)
  WHERE
  {
  	?item wdt:P31/wdt:P279* wd:Q2088357 ; wdt:P136/wdt:P279* wd:Q38848 ; wdt:P495 ?country .
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  GROUP BY ?countryLabel