query: SELECT DISTINCT ?value ?valueLabel (COUNT(DISTINCT ?st) AS ?occurences) WHERE {
    ?item wdt:P31/wdt:P279* wd:Q95074; p:P3342 ?st.
    ?st pq:P3831 ?value.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  GROUP BY ?value ?valueLabel
  ORDER BY DESC(?occurences)