During any year of implementation, should primary tariff adjustment by Dominant Type I Telecommunications Enterprises involve price discrimination by area, the percentage of such tariff adjustment shall be determined through calculations considering the adjustment percentage of each tariff bracket and the traffic volume thereof and shall be weighted by the Laspeyres Price Index (see Attachment).
Such adjustment may not exceed the percentage of tariff adjustment for a given year of implementation as set forth in Article 3.
The calculations considering the adjustment percentage of each tariff bracket referred to in the preceding paragraph may be weighted by traffic volume or by subscribers.
The different "tariff brackets", aforementioned in Paragraph 1, shall refer to tariffs set for different times, communications locations, or speeds with respect to the same service.