The Secretary of the Interior shall apportion to the Absentee Delaware Tribe of Western Oklahoma, as presently constituted, so much of the judgment fund and accrued interest as the ratio of the persons enrolled pursuant to section
1292
(c)(2) of this title bears to the total number of persons enrolled pursuant to section
1292 of this title. The funds so apportioned to the Absentee Delaware Tribe of Western Oklahoma shall be placed to the credit of the tribe in the United States Treasury and shall be used in the following manner: 90 per centum of such funds shall be distributed in equal shares to each person enrolled pursuant to section
1292
(c)(2) of this title, and 10 per centum shall remain to the credit of the tribe in the United States Treasury, and may be advanced, expended, invested, or reinvested for any purpose that is authorized by the tribal governing body and approved by the Secretary of the Interior.