Question: How many Americans are of the decent in which Peter L. Jensen is?

full_context: Document 1: Jens Peter Dahl-Jensen: Jens Peter Dahl-Jensen (actually, "Jens (Peter) Jensen," 23 July 1874 in Nibe, Jutland – 12 December 1960 in Copenhagen) was a Danish sculptor. In 1926 he changed his surname from "Jensen" to "Dahl-Jensen".
Document 2: Peter Madsen (inventor): Peter Langkjær Madsen (] ; born 12 January 1971) is a Danish aerospace engineering enthusiast, "art engineer", submarine builder, entrepreneur, co-founder of the non-profit organization Copenhagen Suborbitals, and founder and CEO of RML Spacelab ApS.
Document 3: Swedish Americans: Swedish Americans (Swedish: "Svenskamerikaner" ) are an American ethnic group of people who have ancestral roots from Sweden. They primarily include the 1.2 million Swedish immigrants during 1885–1915 and their descendants. They formed tight-knit communities, primarily in the American Midwest, and intermarried with other Swedish-Americans. Most were Lutheran Christians who were affiliated with predecessor bodies of what are now the Evangelical Lutheran Church in America (ELCA) or Lutheran Church–Missouri Synod or North American Lutheran Church (NALC); some were Methodists.
Document 4: Jensen Electronics: Jensen is a consumer electronics brand with a history that dates back to 1915 with Peter L. Jensen's invention of the first loudspeaker. Over the years the Jensen family of brands has grown to include Jensen, Advent, Acoustic Research (AR), Phase Linear and NHT Loudspeakers (Now Hear This) in the United States and Magnat and Macaudio in Germany. In 2004, Audiovox Corporation added the Jensen portfolio of brands to their mobile and consumer electronics lines. In 2015, Dual Electronics Corporation (Namsung America) acquired Jensen, however Audiovox maintains its selection of Advent-branded car audio/navigation head units from its line.
Document 5: Jacob Jensen: Jacob Jensen (29 April 1926 – 15 May 2015) was a Danish industrial designer best known for his work with Bang & Olufsen. Jensen designed numerous popular high-end consumer products, developing a functional minimalism style that formed a prominent part of the Danish modern movement. In 1958 he founded the "Jacob Jensen Design Studio." Jensen designed for other brands including Alcatel, Kirk, Boform, General Electric, International Gift Corporation, JO-JO, Labofa, Rodenstock, Rosti (Rosti Mepal), and Stentofon. His works have been featured at the Museum of Modern Art (MoMA) in New York City, and have received numerous design awards.
Document 6: Danes (Germanic tribe): The Danes were a North Germanic tribe inhabiting southern Scandinavia, including the area now comprising Denmark proper, during the Nordic Iron Age and the Viking Age. They founded what became the Kingdom of Denmark. The name of their realm is believed to mean "Danish March", viz. "the march of the Danes" in Old Low German, referring to their southern border zone between the Eider and Schlei rivers.
Document 7: Denmark: Denmark ( ; Danish: "Danmark" , ] ), officially the Kingdom of Denmark, is a Nordic country and a sovereign state. The southernmost of the Scandinavian nations, it is south-west of Sweden and south of Norway, and bordered to the south by Germany. The Kingdom of Denmark also comprises two autonomous constituent countries in the North Atlantic Ocean: the Faroe Islands and Greenland. Denmark proper consists of a peninsula, Jutland, and an archipelago of 443 named islands, with the largest being Zealand, Funen and the North Jutlandic Island. The islands are characterised by flat, arable land and sandy coasts, low elevation and a temperate climate. Denmark has an area of 42924 km2 , total area including Greenland and the Faroe Islands is 2210579 km2 , and a population of 5.75 million (as of 2017 ).
Document 8: Danish Americans: Danish Americans (Danish: "Dansk-amerikanere" ) are Americans who have ancestral roots originated fully or partially from Denmark. There are approximately 1,500,000 Americans of Danish origin or descent.
Document 9: Scandinavian Americans: Scandinavian Americans or Nordic Americans are Americans of Scandinavian (in the broad sense), or part-Scandinavian ancestry, defined in this article to include Danish Americans (estimate: 1,453,897), Faroese Americans (no estimates), Finnish Americans (estimate: 677,272), Greenlandic Americans (estimate: 352), Icelandic Americans (estimate: 51,234), Norwegian Americans (estimate: 4,602,337), Sami Americans (estimate: 30,000), Swedish Americans (estimate: 4,293,208). Also included are persons who reported 'Northern European' ancestry (estimate: 230,027) or 'Scandinavian' ancestry (estimate: 582,549). According to 2010 census data, there are approximately 11,890,524 people of Scandinavian ancestry in the United States.
Document 10: George R. Jensen Jr.: George R. Jensen Jr. is an American business who founded USA Technologies Inc., (USAT), a high-tech company that developed the ePort, the first wireless networked cashless payment technology for vending machines, unattended Point-of-Sale (POS) terminals, and kiosks.
Document 11: Peter L. Jensen: Peter Laurits Jensen (16 May 1886 – 26 October 1961) was a Danish American engineer, inventor and entrepreneur. He founded Magnavox Company and Jensen Radio Manufacturing Company.
Document 12: Svend Olufsen: Svend Olufsen was a Danish electrical engineer who co-founded Bang & Olufsen with . Like Bang, Olufsen studied at the Technical University of Aarhus. Olufsen and Bang both shared an enthusiasm for radio, which at the time was in its infancy.
Document 13: History of the Jews in Denmark: The Jewish community of Denmark constitutes a small minority within Danish society. The community's population peaked prior to the Holocaust at which time the Danish resistance movement (with the assistance of many ordinary Danish citizens) took part in a collective effort to evacuate about 8,000 Jews and their families from Denmark by sea to nearby neutral Sweden, an act which ensured the safety of almost all the Danish Jews.
Document 14: Denmark, Maine: Denmark is a town in Oxford County, Maine, United States. The population was 1,148 at the 2010 census. A number of ponds and lakes are located within the town.
Document 15: Jensen Loudspeakers: Jensen Loudspeakers is a company that manufactures speakers in many different models and sizes. Originally located in Chicago, Illinois, the company built a reputation during the 50s and 60s providing speakers used mainly in guitar and bass amplifiers. Although the American company is long out of business, "reissue" guitar speakers are currently made in Italy by SICA Altoparlanti and distributed in the United States by CE Distribution.
ground_truth: 1,500,000