To answer the specific question, you can rename the table occurrence name of your new table in manage | database to that of the table occurrence from which you imported the data (you'd have to rename or delete the original table occurrence first). This is likely to create new problems even as it solves the current one.
Two options to consider:
- Save a clone (no records) of your file and import your data into this clone. Then you have no layouts to duplicate, you can just use the new file.
- Don't do this at all. There are options for working with your data that should make this kind of "make a new table every year" type of task completely unecessary.