I forbindelse med at finde frem til, om priserne i Fællesskabet havde ændret sig i tilfredsstillende omfang, blev prisniveauet i den nye undersøgelsesperiode sammenlignet med niveauet i den oprindelige undersøgelsesperiode, der løb fra 1. april 2003 til 30. marts 2004.
In establishing whether the prices in the Community had moved sufficiently, the price levels charged during the new IP were compared to those charged during the original investigation period (original IP) which had covered the period from 1 April 2003 to 30 March 2004.