commiss regul ec decemb lai detail rule implement council regul ec minimum standard treatment tariff harmon index consum price text eea relev commiss european commun regard treati establish european commun regard council regul ec octob harmonis indic consum price articl thereof consult european central bank virtu articl regul ec member state requir produc harmon index consum price hicp start index januari articl regul ec requir ensur laspeyr type index formula appli consist indic categori expenditur concern weight reflect appropri pattern expenditur index popul hicp indic involv tariff price practic obtain directli supplier comput member state base data tariff price underli consumpt pattern provid supplier consider scope procedur differ construct indic structur tariff made time made tariff price element extent consum oblig make choic consumpt import ensur relev basic inform obtain ensur result hicp fail meet compar requir articl regul ec virtu articl regul ec basic inform product hicp obtain statist unit consist price weight account order achiev compar virtu articl regul ec statist unit call member state cooper collect provis price data oblig observ price charg give honest complet inform time request virtu articl commiss regul ec amend council regul ec hicp compil includ price newli signific good servic regul requir member state carri statist survei measur provid regul accord opinion statist programm committe spc adopt regul articl aim aim regul set minimum standard treatment tariff price harmon index consum price hicp articl definit purpos regul tariff list pre establish price condit purchas consumpt good servic similar good servic central fix supplier govern agreement exert influenc consumpt pattern mean appropri differenti price condit characterist consum level structur time consumpt tariff negoti household tariff price price tariff appli compon element unit consumpt good servic question articl basic inform basic inform tariff price weight reflect structur consumpt good servic characterist consum level structur time consumpt articl data sourc hicp indic involv tariff price comput member state basic inform defin articl provid supplier statist unit call member state cooper collect provis basic inform oblig give honest complet inform time request organis institut respons compil offici statist request obtain inform level detail evalu complianc compar requir qualiti hicp indic articl procedur hicp indic involv tariff price calcul formula consist laspeyr type formula indic reflect price chang basi chang expenditur maintain consumpt pattern chosen household prior chang tariff chang tariff chang compon element unit consumpt remain unchang respect specif price element unit tariff directli compar price differ hicp compon element unit consumpt respect specif compon element ad constitut good servic consum price chang comput weight expenditur preserv pattern consumpt appli period year preced chang adjust specif consist qualiti adjust made indic compon element unit consumpt distinct specif constitut good servic consum ad tariff treat newli signific good servic defin regul ec expenditur good servic signific index link month tariff forc estim expect consumpt period month articl compar hicp construct procedur articl regul procedur result index differ systemat tenth percentag point averag year previou year index compil procedur deem compar amend procedur practic secur compar defin paragraph implement earliest indic entri forc regul latest decemb effect index januari articl qualiti control member state provid commiss eurostat inform procedur develop treatment tariff price procedur differ articl regul procedur member state provid commiss eurostat request inform procedur meet requir minimum standard establish regul articl entri forc regul enter forc dai public offici journal european commun regul bind entireti directli applic member state brussel decemb commiss yve thibault de silgui member commiss oj opinion deliv juli oj oj