If the offender commits, within five years of a settlement or conviction that became final after the entry into force of the loi n° 77-1453 du 29 décembre 1977 modifiée accordant des garanties de procédure aux contribuables en matière fiscale et douanière, a new offence falling under the proportional penalty provided for in I of article 1791 and the articles 1793 A, 1794,1797 and 1804, the maximum rate of this penalty is doubled.