In ascertaining the value of the assets of a credit union:

1. A loan delinquent for more than two but less than six months shall be valued at 90 percent of the unpaid balance;

2. A loan delinquent for six months but less than 12 months shall be valued at 75 percent of the unpaid balance; and

3. A loan delinquent for 12 months or more shall be treated as of no value.