instruction: how much is patient 029-19659's weight for the last time in 04/last year?
response: SELECT patient.admissionweight FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '029-19659') AND NOT patient.admissionweight IS NULL AND DATETIME(patient.unitadmittime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-1 year') AND STRFTIME('%m', patient.unitadmittime) = '04' ORDER BY patient.unitadmittime DESC LIMIT 1