Article 2
1. Member States shall produce these series for the data concerning the 1999 reference year and subsequent years for List A characteristics listed in paragraph 3, Section 4 of Annex 5 to Regulation (EC, Euratom) No 58/97 and for the data concerning the 2003 reference year and subsequent years for List B characteristics listed in paragraph 4, Section 4 of Annex 5 to the said Regulation. 2. Member States shall also produce these series for List A characteristics for the 1996, 1997 and 1998 reference years where this corresponds to existing national practices and for List B characteristics for the 2000, 2001 and 2002 reference years where this corresponds to existing national practices.