The amount to be allocated to the counties shall be apportioned in the ratio of the value of R for each county divided by the sum of the values of R for all five (5) counties.
The amount to be allocated for all cities and for all towns within a county shall be the allocation for that county apportioned proportionally to the total tax effort of the towns and cities in that county.
The amount to be allocated to any city or town is the amount allocated to all cities or all towns within the county apportioned in the ratio of the value of R for that city (or town) divided by the sum of the values of R for all cities (or all towns) in that county; provided, further, that no city or town shall receive an entitlement in excess of one hundred forty-five percent (145%) of that city or town's population multiplied by the average per capita statewide amount of the annual appropriation for state aid to cities and towns. Any excess entitlement shall be allocated to the remainder of the cities and towns in the respective county in accordance with the provisions of this section.
For fiscal year 2004, notwithstanding the provisions of subsection (a), aid calculations shall be based on a blended rate of ninety percent (90%) of the data from the 1990 census and ten percent (10%) of the data from the 2000 census. In each of the succeeding nine (9) fiscal years, the calculations shall be based on a blended rate that increases the percentage of data utilized from the 2000 census by ten percent (10%) from the previous year and decreases the percentage of the data utilized from the 1990 census by ten percent (10%) from the previous year.
R.I. Gen. Laws § 45-13-1