(a) Distribution of the in-lieu-of-taxes payments of T.V.A. by the state to the served counties shall be made to the governing bodies of served counties. Any county receiving a share of said payments that has within its boundaries a municipality or part thereof that is served in whole or in part by T.V.A. shall share in the county's payments with said municipality receiving the same amount as the ratio of T.V.A.-served population of the municipality bears to the T.V.A.-served population of the entire county. However, the Legislature may, by general or local laws, prescribe other distribution within such counties to local governments and/or public agencies therein.

(b) The in-lieu-of-taxes payments distributed each year to the served counties shall be as follows:

(1) Eighty percent of the amount of such distribution to the served counties shall be distributed among the counties in the same proportion that the amount of T.V.A. power sales revenue generated in that county less industrial power sales bears to the total amount of T.V.A. power sales revenue generated in all counties less industrial power sales in all served counties.

(2) Ten percent of the amount of such distribution to the served counties shall be distributed among the counties in the same proportion that the book value amount of the T.V.A.'s property in each county bears to the total book value of all T.V.A.'s property in all counties served by the T.V.A.

(3) Ten percent of the amount of such percentage of payments shall be distributed among the counties in the same proportion that the T.V.A.'s industrial power sales in each county bears to the total amount of T.V.A.'s industrial power sales in all served counties of the state.