when did patient 12917 come into the hospital through the transfer from hosp/extram since 2103 for the last time?
select admissions.admittime from admissions where admissions.subject_id = 12917 and admissions.admission_location = 'transfer from hosp/extram' and strftime('%y',admissions.admittime) >= '2103' order by admissions.admittime desc limit 1