Question: When was the change to the dollar by the country providing the most immigrants in 2013 from the continent where the football tournament was held?

full_context: Document 1: 2019 Copa América: The 2019 Copa América will be the 46th edition of the Copa América, the quadrennial international men's football championship organized by South America's football ruling body CONMEBOL. It will be held in Brazil. The winner of the tournament will earn the right to compete for the 2021 FIFA Confederations Cup. Chile will be the defending champions.
Document 2: Mexico City: On the other hand, Mexico City is also home to large communities of expatriates and immigrants, most notably from the rest of North America (U.S. and Canada), from South America (mainly from Argentina and Colombia, but also from Brazil, Chile, Uruguay and Venezuela), from Central America and the Caribbean (mainly from Cuba, Guatemala, El Salvador, Haiti and Honduras); from Europe (mainly from Spain, Germany and Switzerland, but also from Czech Republic, Hungary, France, Italy, Ireland, the Netherlands, Poland and Romania), from the Middle East (mainly from Egypt, Lebanon and Syria); and recently from Asia-Pacific (mainly from China and South Korea). Historically since the era of New Spain, many Filipinos settled in the city and have become integrated in Mexican society. While no official figures have been reported, population estimates of each of these communities are quite significant.
Document 3: New York City: Ecuador, Colombia, Guyana, Peru, and Brazil were the top source countries from South America for legal immigrants to the New York City region in 2013; the Dominican Republic, Jamaica, Haiti, and Trinidad and Tobago in the Caribbean; Egypt, Ghana, and Nigeria from Africa; and El Salvador, Honduras, and Guatemala in Central America. Amidst a resurgence of Puerto Rican migration to New York City, this population had increased to approximately 1.3 million in the metropolitan area as of 2013.
Document 4: Currency of Ecuador: The US dollar became legal tender in Ecuador March 13, 2000, and sucre notes ceased being legal tender on September 11. Sucre notes remained exchangeable at Banco Central until March 30, 2001, at 25,000 sucres per dollar. Ecuador now only issues its own centavo coins.
Document 5: Geography of Brazil: The country of Brazil occupies roughly half of South America, bordering the Atlantic Ocean. Brazil covers a total area of 8,514,215 km (3,287,357 sq mi) which includes 8,456,510 km (3,265,080 sq mi) of land and 55,455 km (21,411 sq mi) of water. The highest point in Brazil is Pico da Neblina at 2,994 m (9,823 ft). Brazil is bordered by the countries of Argentina, Bolivia, Colombia, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, and France (overseas department of France, French Guiana).
Document 6: Salvadoran colón: The colón was the currency of El Salvador between 1892 and 2001, until it was replaced by the U.S. Dollar. It was subdivided into 100 centavos and its ISO 4217 code was SVC. The plural is colones in Spanish and was named after Christopher Columbus, known as Cristóbal Colón in Spanish.
Document 7: 1986 FIFA World Cup: The 1986 FIFA World Cup, the 13th FIFA World Cup, was held in Mexico from 31 May to 29 June 1986. The tournament was the second to feature a 24-team format. With European nations not allowed to host after the previous World Cup in Spain, Colombia had been originally chosen to host the competition by FIFA but, largely due to economic reasons, was not able to do so and officially resigned in 1982. Mexico was selected as the new host in May 1983, thus becoming the first country to host the World Cup more than once. This was the third FIFA World Cup tournament in succession that was hosted by a Spanish-speaking country, after Argentina 1978, and Spain 1982.
Document 8: Euro: The changeover period during which the former currencies' notes and coins were exchanged for those of the euro lasted about two months, until 28 February 2002. The official date on which the national currencies ceased to be legal tender varied from member state to member state. The earliest date was in Germany, where the mark officially ceased to be legal tender on 31 December 2001, though the exchange period lasted for two months more. Even after the old currencies ceased to be legal tender, they continued to be accepted by national central banks for periods ranging from several years to indefinitely (the latter for Austria, Germany, Ireland, Estonia and Latvia in banknotes and coins, and for Belgium, Luxembourg, Slovenia and Slovakia in banknotes only). The earliest coins to become non-convertible were the Portuguese escudos, which ceased to have monetary value after 31 December 2002, although banknotes remain exchangeable until 2022.
Document 9: 1989 Copa América: The Copa América 1989 football tournament was hosted by Brazil, from 1 to 16 July. All ten CONMEBOL member nations participated.
Document 10: Languages of Brazil: Portuguese is the official language of Brazil, and is widely spoken by most of population. Brazilian Sign Language is also an official language. Minority languages include indigenous languages and languages of more recent European and Asian immigrants. The population speaks or signs approximately 210 languages, of which 180 are indigenous. Less than forty thousand people actually speak any one of the indigenous languages in the Brazilian territory.
Document 11: 1990 FIFA World Cup: 1990 FIFA World Cup Coppa del Mondo FIFA Italia '90 1990 FIFA World Cup official logo Tournament details Host country Italy Dates 8 June -- 8 July (31 days) Teams 24 (from 5 confederations) Venue (s) 12 (in 12 host cities) Final positions Champions West Germany (3rd title) Runners - up Argentina Third place Italy Fourth place England Tournament statistics Matches played 52 Goals scored 115 (2.21 per match) Attendance 2,516,215 (48,389 per match) Top scorer (s) Salvatore Schillaci (6 goals) Best player Salvatore Schillaci Best young player Robert Prosinečki Fair play award England ← 1986 1994 →
Document 12: Brazil: Brazil (Portuguese: Brasil Portuguese pronunciation: (bɾaˈziw)), officially the Federative Republic of Brazil (Portuguese: República Federativa do Brasil, listen (help info)), is the largest country in both South America and Latin America. At 8.5 million square kilometers (3.2 million square miles) and with over 208 million people, Brazil is the world's fifth - largest country by area and the sixth most populous. The capital is Brasília, and the most populated city is São Paulo. The federation is composed of the union of the 26 states, the Federal District, and the 5,570 municipalities. It is the largest country to have Portuguese as an official language and the only one in the Americas; it is also one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world.
Document 13: Currencies of Puerto Rico: The situado was discontinued during the 19th century, creating an economic crisis, as a result of Mexico gaining its independence from Spain. Salvador Meléndez Bruna, the colonial governor in office, ordered the issue of provincial banknotes, creating the Puerto Rican peso. However, printing of these banknotes ceased after 1815. During the following decades, foreign coins became the widespread currency. In the 1860s and 1870s, banknotes reemerged. On February 1, 1890, the Banco Español de Puerto Rico was inaugurated and began issuing banknotes. The bank designed four series and placed three in circulation under Spanish rule. In 1895, a Royal Decree ordered the production of provincial peso coins.
Document 14: José Antunes Sobrinho: Brasília (Portuguese pronunciation: [bɾaˈziljɐ]) is the federal capital of Brazil and seat of government of the Federal District. The city is located atop the Brazilian highlands in the country's center-western region. It was founded on April 21, 1960, to serve as the new national capital. Brasília and its metro (encompassing the whole of the Federal District) had a population of 2,556,149 in 2011, making it the 4th most populous city in Brazil. Among major Latin American cities, Brasília has the highest GDP per capita at R$61,915 (US$36,175).
Document 15: New York City: Approximately 37% of the city's population is foreign born. In New York, no single country or region of origin dominates. The ten largest sources of foreign-born individuals in the city as of 2011 were the Dominican Republic, China, Mexico, Guyana, Jamaica, Ecuador, Haiti, India, Russia, and Trinidad and Tobago, while the Bangladeshi immigrant population has since become one of the fastest growing in the city, counting over 74,000 by 2013.
ground_truth: March 13, 2000
sub_queries: Where was the football tournament held? Answer: Brazil,
Brazil, is the largest country on which continent Answer: South America
Of all the countries in South America , which provided the most legal immigrants in 2013? Answer: Ecuador
when did Ecuador change to the us dollar Answer: March 13, 2000