in 10/this year, what was the minimum bands value for patient 23002?
select min(labevents.valuenum) from labevents where labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 23002 ) and labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'bands' ) and datetime(labevents.charttime,'start of year') = datetime(current_time,'start of year','-0 year') and strftime('%m',labevents.charttime) = '10'