MONTHDELTA($ksrq,12)


FORMAT(MONTHDELTA($ksrq,12),"yyyy-MM")
if(INDEXOFARRAY(SPLIT(value("ds2",1),","),count(SPLIT(value("ds2",1),",")))<FORMAT(MONTHDELTA($ksrq,12),"yyyy-MM"),INDEXOFARRAY(SPLIT(value("ds2",1),","),count(SPLIT(value("ds2",1),","))),FORMAT(MONTHDELTA($ksrq,12),"yyyy-MM"))