a constant ratio between solid and energy use of forest biomass as documented in the period from 2000 to 2009 shall be assumed;
glacfar le cóimheas seasta idir úsáid sholadach agus úsáid fhuinniúil a bhaint as bithmhais fhoraoise mar atá doiciméadaithe sa tréimhse ó 2000 go 2009;