Accountancy firm PricewaterhouseCoopers has produced statistics for the Queen's Diamond Jubilee to show how relations have changed between Britain and countries like New Zealand over 60 years.
Of Britain's total trade with the world in 1952, 52% was with key Commonwealth countries, compared to 3% now.
The statistics also compare economic growth in Britain, New Zealand, Canada and Australia over the 60-year period of the Queen's reign.
Income growth per person has been slower in New Zealand than in the other three countries but higher population growth has pushed total economic growth here above that of Britain.
The figures also show New Zealand growth forecasts to 2027 are slightly higher than Britain but lower than Australia.