Statistics relating to enlargement of the European Union 1973 enlargement 1973 enlargement

| Member_countries | Population | Area_km² | GDP_billion_US_ | GDP_per_capita_US_ |
|---|---|---|---|---|
| Denmark | 5021861 | 43094 | 70.032 | $59,928 |
| Ireland | 3073200 | 70273 | 21.103 | $39,638 |
| United Kingdom | 56210000 | 244820 | 675.941 | $36,728 |
| Accession countries | 64305061 | 358187 | 767.076 | 11929 |
| Existing members (1973) | 192457106 | 1299536 | 2381396 | 12374 |
| EC9 (1973) | 256,762,167 (+33.41%) | 1,657,723 (+25.44%) | 3,148.472 (+32.21%) | 12,262 (−0.91%) |