Wikidata:WikiProject Heads of state and government/Newest Heads of Government

SELECT DISTINCT ?item ?itemLabel ?country ?countryLabel ?weeks
WHERE {      
  ?country wdt:P31 wd:Q3624078 ; wdt:P1313 ?office .
  ?item wdt:P31 wd:Q5 ; p:P39 ?posn .
  ?posn ps:P39 ?office ; pq:P580 ?start_date .
  FILTER NOT EXISTS { ?posn pq:P582 ?end_date }
  BIND(ROUND((NOW() - ?start_date)/7) AS ?weeks)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY DESC(?start_date)
LIMIT 30