Adding Rows Without Losing Formulas

I have a worksheet of customers. I have created dropdown lists for different columns, such as region and industry. I made this worksheet into a table so as I add a new row/customer, the table design would continue and ideally so would the dropdown lists. The table design does continue/expand......however, the cells that should have the dropdown lists do not. They are empty - the dropdown lists did not follow. Hope this question makes sense. Any ideas?