Question: What percent were born outside of the mother country of Isostar?

full_context: Document 1: Bern: In 2000[update], there were 94,367 workers who commuted into the municipality and 16,424 workers who commuted away. The municipality is a net importer of workers, with about 5.7 workers entering the municipality for every one leaving. Of the working population, 50.6% used public transport to get to work, and 20.6% used a private car.
Document 2: Rivella: Rivella is a soft drink from Switzerland, created by Robert Barth in 1952, which is produced from milk whey, and therefore includes ingredients such as lactose, lactic acid and minerals. It comes in seven varieties.
Document 3: Josta: Josta was a soft drink brand that was produced by PepsiCo and the first energy drink ever introduced by a major US beverage company. Josta's flavor has been described as predominantly fruity, with a hint of spice and a touch of the key ingredient guaraná. It was marketed as a "high-energy drink" with guaraná and caffeine.
Document 4: Bern: As of 2008[update], the population was 47.5% male and 52.5% female. The population was made up of 44,032 Swiss men (35.4% of the population) and 15,092 (12.1%) non-Swiss men. There were 51,531 Swiss women (41.4%) and 13,726 (11.0%) non-Swiss women. Of the population in the municipality, 39,008 or about 30.3% were born in Bern and lived there in 2000. There were 27,573 or 21.4% who were born in the same canton, while 25,818 or 20.1% were born somewhere else in Switzerland, and 27,812 or 21.6% were born outside of Switzerland.
Document 5: Switzerland: Many Swiss also follow ice hockey and support one of the 12 clubs in the League A, which is the most attended league in Europe. In 2009, Switzerland hosted the IIHF World Championship for the 10th time. It also became World Vice-Champion in 2013. The numerous lakes make Switzerland an attractive place for sailing. The largest, Lake Geneva, is the home of the sailing team Alinghi which was the first European team to win the America's Cup in 2003 and which successfully defended the title in 2007. Tennis has become an increasingly popular sport, and Swiss players such as Martina Hingis, Roger Federer, and most recently, Stanislas Wawrinka have won multiple Grand Slams. Swiss professional wrestler Claudio Castagnoli is currently signed with WWE, and is a former United States champion.
Document 6: Bern: As of 2000[update], there were 9,045 pupils in Bern who came from another municipality, while 1,185 residents attended schools outside the municipality.
Document 7: Isostar: Isostar is a sports drink sold in Europe. It is similar to Gatorade and Powerade in that it hydrates and provides energy through glucose. Isostar was first created in Switzerland in 1977.
Document 8: Bern: Bern has a population of 140,634 people and 34% of the population are resident foreign nationals. Over the 10 years between 2000 and 2010, the population changed at a rate of 0.6%. Migration accounted for 1.3%, while births and deaths accounted for −2.1%.
Document 9: Bern: As of 2000[update], there were 59,948 people who were single and never married in the municipality. There were 49,873 married individuals, 9,345 widows or widowers and 9,468 individuals who are divorced.
Document 10: Bern: The city's population rose from about 5,000 in the 15th century to about 12,000 by 1800 and to above 60,000 by 1900, passing the 100,000 mark during the 1920s. Population peaked during the 1960s at 165,000, and has since decreased slightly, to below 130,000 by 2000. As of October 2015, the resident population stood at 140,634, of which 100,634 were Swiss citizens and 40,000 (30%) resident foreigners. A further estimated 350,000 people live in the immediate urban agglomeration.
Document 11: AdeS: AdeS is a brand of drinking water available in Indonesia. The mineral water is also known as I-Lohas in Japan. The Coca-Cola Company acquired the Ades bottled water brand for $20 million in 2000 as part of its $45 million investment in the country since 1999 under PT Akasha Wira International Tbk. It is currently made by PT Coca-Cola Bottling Indonesia in Bekasi, West Java, where it also made Coca-Cola, Fanta and Sprite.
Document 12: Staminade: Staminade is the first sports drink to be commercially manufactured and marketed in Australia, available in Australian retail outlets since the 1970s.
Document 13: Izze: Izze (pronounced iz-ee) is the brand name of a line of carbonated juice drinks produced by the IZZE Beverage Company in Boulder, Colorado, which is owned by PepsiCo. The drinks consist of 70% fruit juice from concentrate, and 30% seltzer water. Izze does not contain added preservatives.
Document 14: Shark Energy: Shark Energy Drink is available in a number of variations, including carbonated, uncarbonated versions, sugared and sugar-free. The drink is manufactured in Thailand by the Osotspa Co. Ltd in Bangkok, and also in Europe by Shark AG in Innsbruck, Austria.
Document 15: Bern: From the 2000 census[update], 60,455 or 47.0% belonged to the Swiss Reformed Church, while 31,510 or 24.5% were Roman Catholic. Of the rest of the population, there were 1,874 members of an Orthodox church (or about 1.46% of the population), there were 229 persons (or about 0.18% of the population) who belonged to the Christian Catholic Church, and there were 5,531 persons (or about 4.30% of the population) who belonged to another Christian church. There were 324 persons (or about 0.25% of the population) who were Jewish, and 4,907 (or about 3.81% of the population) who were Muslim. There were 629 persons who were Buddhist, 1,430 persons who were Hindu and 177 persons who belonged to another church. 16,363 (or about 12.72% of the population) belonged to no church, are agnostic or atheist, and 7,855 persons (or about 6.11% of the population) did not answer the question. On 14 December 2014 the Haus der Religionen was inaugurated.
ground_truth: 21.6%
sub_queries: What is the country Isostar is from? Answer: Switzerland
What percent were born outside of Switzerland ? Answer: 21.6%