The interpretation of a credit score will vary by lender, industry, and the economy as a whole. While 640 has been a divider between "prime" and "subprime", all considerations about score revolve around the strength of the economy in general and investors' appetites for risk in providing the funding for borrowers in particular when the score is evaluated. In 2010, the Federal Housing Administration (FHA) tightened its guidelines regarding credit scores to a small degree, but lenders who have to service and sell the securities packaged for sale into the secondary market largely raised their minimum score to 640 in the absence of strong compensating factors in the borrower's loan profile. In another housing example, Fannie Mae and Freddie Mac began charging extra for loans over 75% of the value that have scores below 740. Furthermore, private mortgage insurance companies will not even provide mortgage insurance for borrowers with scores below 660. Therefore, "prime" is a product of the lender's appetite for the risk profile of the borrower at the time that the borrower is asking for the loan.