Android SqliteAssetHelper copy user saved data

I am using SQLiteAssetHelper utility to manage the copying of the database from my asset folder. In the app, the user enters some data into the database and as soon as I upgrade the db, all the data gets deleted cause I have set setForcedUpgrade();. I heard you can use upgrade scripts, but I think they do not help me in this case as the data is unique for each user. How can I solve this?