When, as a result of the start of one or more construction programmes, the population of a municipality has undergone a variation in accordance with the formula set out in article R. 2573-13-1, an order of the Minister for Overseas France, issued after consultation with the Minister for the Economy, may decide that a fictitious population corresponding to four times the number of dwellings under construction, i.e. located in a building whose foundations have begun to be poured as stated in article D. 2573-13-1 for the calculation of State grants and subsidies to local authorities and for any distribution of common funds.