query: select ?occup ?occupLabel (COUNT(DISTINCT ?rider) AS ?count) where {
    ?team wdt:P31/wdt:P279* wd:Q1785271 .
    ?team wdt:P527 ?rider .
    optional { ?rider wdt:P106 ?occup . }
    
      SERVICE wikibase:label {
          bd:serviceParam wikibase:language "de,fr,en" .
      }
  
    }group by ?occup ?occupLabel
  ORDER BY DESC (?count)