The third largest city in Spain and the Largest cities of the European Union by population within city limits in the European Union, Valencia has a population of 809,267 within its administrative limits on a land area of . The urban area of Valencia extending beyond the administrative city limits has a population of between 1,561,000 and 1,564,145. 1,705,742 or 2,300,000 or 2,516,818 people live in the Valencia metropolitan area. Between 2007 and 2008 there was a 14% increase in the foreign born population with the largest numeric increases by country being from Bolivia, Romania and Italy. This growth in the foreign born population, which rose from 1.5% in the year 2000 to 9.1% in 2009, has also occurred in the two larger cities of Madrid and Barcelona. The main countries of origin were Romania, United Kingdom and Bulgaria.
Question: How many main countries of origin were there for immigration?
Answer: 4