(b) District subaccount. -- A separate and segregated subaccount within the account shall be established for each economic opportunity development district that is approved by the Executive Director of the Development Office. In addition to the economic opportunity district excise tax levied and collected as provided in this article, funds paid into the account for the credit of any subaccount may also be derived from the following sources:
(1) All interest or return on the investment accruing to the subaccount;
(2) Any gifts, grants, bequests, transfers, appropriations or donations which are received from any governmental entity or unit or any person, firm, foundation or corporation; and
(3) Any appropriations by the Legislature which are made for this purpose.