Question: How much did oil and gas exploration and production make up the gross product of the residence city of the performer of Relentless?

full_context: Document 1: Comedy's Dirtiest Dozen: Comedy's Dirtiest Dozen is a stand-up comedy concert film featuring big name talents before they reached stardom, including Tim Allen, Chris Rock, and Bill Hicks. It was created and produced by Stuart S. Shapiro after the cult success of his film Mondo New York. The performances were shot on film, instead of on tape like most comedy shows of the time. Island Films (an offshoot of Chris Blackwell's Island Records) intended to run Comedy's Dirtiest Dozen in theaters and not on cable TV. Due to financial changes at Island, the film was only screened in New York and Los Angeles, only to be released on VHS and DVD after Tim Allen and Chris Rock became stars. It has been shown on The Ovation Channel.
Document 2: Kanye West: In September 2013, West was widely rebuked by human rights groups for performing in Kazakhstan at the wedding of authoritarian President Nursultan Nazarbayev's grandson. He traveled to Kazakhstan, which has one of the poorest human rights records in the world, as a personal guest of Nazarbayev. Other notable Western performers, including Sting, have previously cancelled performances in the country over human rights concerns. West was reportedly paid US$3 million for his performance. West had previously participated in cultural boycotts, joining Shakira and Rage Against The Machine in refusing to perform in Arizona after the 2010 implementation of stop and search laws directed against potential illegal aliens.
Document 3: Houston: The Houston area is a leading center for building oilfield equipment. Much of its success as a petrochemical complex is due to its busy ship channel, the Port of Houston. In the United States, the port ranks first in international commerce and tenth among the largest ports in the world. Unlike most places, high oil and gasoline prices are beneficial for Houston's economy, as many of its residents are employed in the energy industry. Houston is the beginning or end point of numerous oil, gas, and products pipelines:
Document 4: Houston: In 2006, the Houston metropolitan area ranked first in Texas and third in the U.S. within the Category of "Best Places for Business and Careers" by Forbes magazine. Foreign governments have established 92 consular offices in Houston's metropolitan area, the third highest in the nation. Forty foreign governments maintain trade and commercial offices here and 23 active foreign chambers of commerce and trade associations. Twenty-five foreign banks representing 13 nations operate in Houston, providing financial assistance to the international community.
Document 5: Houston: The Houston–The Woodlands–Sugar Land MSA's gross domestic product (GDP) in 2012 was $489 billion, making it the fourth-largest of any metropolitan area in the United States and larger than Austria's, Venezuela's, or South Africa's GDP. Only 26 countries other than the United States have a gross domestic product exceeding Houston's regional gross area product (GAP). In 2010, mining (which consists almost entirely of exploration and production of oil and gas in Houston) accounted for 26.3% of Houston's GAP up sharply in response to high energy prices and a decreased worldwide surplus of oil production capacity, followed by engineering services, health services, and manufacturing.
Document 6: Houston: Houston is recognized worldwide for its energy industry—particularly for oil and natural gas—as well as for biomedical research and aeronautics. Renewable energy sources—wind and solar—are also growing economic bases in the city. The Houston Ship Channel is also a large part of Houston's economic base. Because of these strengths, Houston is designated as a global city by the Globalization and World Cities Study Group and Network and global management consulting firm A.T. Kearney. The Houston area is the top U.S. market for exports, surpassing New York City in 2013, according to data released by the U.S. Department of Commerce's International Trade Administration. In 2012, the Houston–The Woodlands–Sugar Land area recorded $110.3 billion in merchandise exports. Petroleum products, chemicals, and oil and gas extraction equipment accounted for approximately two-thirds of the metropolitan area's exports last year. The Top 3 destinations for exports were Mexico, Canada, and Brazil.
Document 7: Mexico City: Mexico City is one of the most important economic hubs in Latin America. The city proper (Federal District) produces 15.8% of the country's gross domestic product. According to a study conducted by PwC, Mexico City had a GDP of $390 billion, ranking it as the eighth richest city in the world after the greater metropolitan areas of Tokyo, New York City, Los Angeles, Chicago, Paris, London and Osaka/Kobe (and the richest in the whole of Latin America). Excluding the rest of the Mexican economy, Mexico City alone would rank as the 30th largest economy in the world. Mexico City is the greatest contributor to the country's industrial GDP (15.8%) and also the greatest contributor to the country's GDP in the service sector (25.3%). Due to the limited non-urbanized space at the south—most of which is protected through environmental laws—the contribution of the Federal District in agriculture is the smallest of all federal entities in the country. Mexico City has one of the world's fastest-growing economies and its GDP is set to double by 2020.
Document 8: Kanye West: In December 2006, Robert "Evel" Knievel sued West for trademark infringement in West's video for "Touch the Sky". Knievel took issue with a "sexually charged video" in which West takes on the persona of "Evel Kanyevel" and attempts flying a rocket over a canyon. The suit claimed infringement on Knievel's trademarked name and likeness. Knievel also claimed that the "vulgar and offensive" images depicted in the video damaged his reputation. The suit sought monetary damages and an injunction to stop distribution of the video. West's attorneys argued that the music video amounted to satire and therefore was covered under the First Amendment. Just days before his death in November 2007, Knievel amicably settled the suit after being paid a visit from West, saying, "I thought he was a wonderful guy and quite a gentleman."
Document 9: Live: Take No Prisoners: The illustrations on the cover were officially credited to Brent Bailer but Spanish illustrator won in 2000 a legal battle after which it was determined that the original drawing had been done by him for the cover of a magazine in the seventies. RCA was forced to pay Nazario 4 million pesetas (around 24,000 euros/$27,000 USD). Nazario has said that if Lou Reed had ever asked him for permission to use his drawing, he would probably have given it for free.
Document 10: Love All the People: Letters, Lyrics, Routines: Love All The People: Letters, Lyrics, Routines is a posthumously released collection of routines, letters and lyrics by American comedian Bill Hicks. It was published in February 2004 in the UK (), and November 2004 in the US (). In May 2005 a second expanded edition was published. The book is a chronological selection of his works from throughout his career, presenting the gradual evolution of his attitudes and style, with a foreword from John Lahr. The book is split into four sections. The first section covers the years 1980–1991, the second section covers 1992, the third covers early to mid-1993, and the fourth covers late 1993–1994.
Document 11: Texas Outlaw Comics: They chose and trademarked their name because Sam Kinison was using the term "Outlaw" to brand his own act, and Epstein felt that Kinison owed him money he hadn't been paid. Their first taped special under the name Texas Outlaw Comics was for Houston NBC affiliate KPRC-TV.
Document 12: Out of Limits: While on tour with a band called the Routers, Gordon wrote the Marketts’ first release on the Warner Bros. label and their biggest hit, an instrumental called “Outer Limits”. First pressings were issued as "Outer Limits", named and surf-styled after the television program of the same name. However, Rod Serling sued the Marketts for quoting the four note motif from his television show, "The Twilight Zone", without his approval, which resulted in the change of the title to "Out of Limits". The record has been described as "an intriguing up-beat disc with a galloping rhythm".
Document 13: Dangerous (Bill Hicks album): Dangerous is the first live CD album released by stand-up comedian and satirist Bill Hicks in 1990, on New York-based Invasion Records. The album was recorded over two nights at Caroline's in New York City.
Document 14: Relentless (Bill Hicks album): Relentless is a live album by stand-up comedian and satirist Bill Hicks. It was his second CD release, and his last one before his death from pancreatic cancer in February 1994.
Document 15: Lemmy: Lemmy continued to record and tour regularly with Motörhead until his death in December 2015 in Los Angeles, California, where he had lived since 1990. Aside from his musical activities, he was well known for his hard-living lifestyle, which included chain-smoking and regular consumption of alcohol and amphetamines. He died on 28 December 2015 of prostate cancer.
ground_truth: 26.3%
sub_queries: Relentless >> performer Answer: Bill Hicks
Bill Hicks >> residence Answer: Houston
How much did oil and gas exploration and production make up Houston 's gross product? Answer: 26.3%