“The overall index is composed of three dimensions: supply, demand, and government support. Supply is assessed by the total number of arts providers in the community, including the number of arts and culture organizations and employees, independent artists, and entertainment firms. Demand is gauged by the total nonprofit arts dollars in the community, including program revenue, contributed revenue, total expenses, and total compensation. Lastly, the level of government support is based on state and federal arts dollars and grants.”