instruction: what is the yearly maximum amount of myelocytes patient 19412 has?
response: SELECT MAX(labevents.valuenum) FROM labevents WHERE labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 19412) AND labevents.itemid IN (SELECT d_labitems.itemid FROM d_labitems WHERE d_labitems.label = 'myelocytes') GROUP BY STRFTIME('%y', labevents.charttime)