%(HEADER)s
let $years := for $year in collection("%(COLLECTION)s")/lom:lom%(OBJECT_TYPE)s%(CONDITION_BASE)s%(CONDITION_SUP)s/lom:metaMetadata/lom:contribute[lom:role='creator' or lom:role='createur'][1]/lom:date/lom:dateTime
              return year-from-date($year)
for $year in distinct-values($years)
let $res := <year>{$year}</year>
    order by $year ascending
return
%(TAIL)s
