Alle medlemsstater havde en øget ekspansionstakt, der dog var særlig markant i Det forenede Kongerige, hvis bruttonationalprodukt (i faste priser) steg lidt mere end 6 % i 1973 mod næsten 2,5 % i 1972.
All the member countries registered an increase in their pace of expansion, but this was specially sharp in the United Kingdom, where the year-to-year growth rate was a little over 6% in 1973 compared with only 2.5% in 1972.