query: # number of citizens with “blood type” statements per country
  # runtime: 0.5-1 s
  SELECT ?countryLabel ?count WITH {
    SELECT ?country (COUNT(DISTINCT ?human) AS ?count) WHERE {
      ?human wdt:P31 wd:Q5;
             wdt:P27 ?country;
             wdt:P1853 ?bloodType.
    }
    GROUP BY ?country
  } AS %results WHERE {
    INCLUDE %results.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  ORDER BY DESC(?count)