decis european central bank decemb approv volum coin issuanc ecb ec govern council european central bank regard treati establish european commun hereinaft refer quot treati quot articl thereof european central bank ecb exclus approv volum coin issu member state januari member state submit ecb approv estim volum nation coin issu supplement explanatori note forecast methodolog adopt decis articl approv volum nation coin issu ecb approv volum coin issu particip member state tabl gt tabl gt articl final provis decis address particip member state decis publish offici journal european commun frankfurt main decemb presid ecb willem duisenberg