Hello,    I have some data stored in SAS in the following form -    Txn ID Month Value 1 201811 120 1 201812 240 1 201902 350 1 201903 400 1 201905 100 2 201812 200 2 201902 300   I essentially want to fill up the missing month values until say May of this year, this is the data that I want -    Txn ID Month Value 1 201811 120 1 201812 240 1 201901 24 1 201902 350 1 201903 400 1 201904 400 1 201905 100 2 201812 200 2 201901 200 2 201902 300   Could someone help me with this , please! ... View more