Question: how many countries are member of the eu??
Would "With a combined population of over 500 million inhabitants, or 7.3% of the world population, the EU, in 2012, generated a nominal gross domestic product (GDP) of 16.584 trillion US dollars, representing approximately 20% of the global GDP when measured in terms of purchasing power parity , and represents the largest nominal GDP and GDP PPP in the world." be a reasonable answer? 