Question: What is the net worth of the Austrian  Red Bull founder as of 2017? 
Context: Asset poverty is an economic and social condition that is more persistent and prevalent than income poverty.  It can be defined as a household’s inability to access wealth resources that are sufficient to provide for basic needs for a period of three months.  Basic needs refer to the minimum standards for consumption and acceptable needs.  Wealth resources consist of home ownership, other real estate (second home, rented properties, etc.), net value of farm and business assets, stocks, checking and savings accounts, and other savings (money in savings bonds, life insurance policy cash values, etc.).  Wealth is measured in three forms: net worth, net worth minus home equity, and liquid assets.  Net worth consists of all the aspects mentioned above.  Net worth minus home equity is the same except it does not include home ownership in asset calculations.  Liquid assets are resources that are readily available such as cash, checking and savings accounts, stocks, and other sources of savings.  There are two types of assets: tangible and intangible.  Tangible assets most closely resemble liquid assets in that they include stocks, bonds, property, natural resources, and hard assets not in the form of real estate.  Intangible assets are simply the access to credit, social capital, cultural capital, political capital, and human capital. The Red Bull RB12 is a Formula One racing car designed by Red Bull Racing to compete in the 2016 Formula One season.  The car was driven by Daniel Ricciardo and Max Verstappen.  Scuderia Toro Rosso driver Verstappen was promoted to Red Bull after swapping places with Daniil Kvyat ahead of the Spanish Grand Prix .  The car is very similar compared to the Red Bull RB11, albeit in a revised livery introduced before the start of the season.  The car used a Renault engine re-badged as a TAG Heuer following the breakdown in the relationship between Red Bull and Renault in .  This was the last Red Bull car with fuel and lubricants from Total — ending their eight-year partnership. Colin Fleming (born April 21, 1984 in San Diego, California) is an American former racing driver who completed in the Formula Renault 2.0 Eurocup, Formula Renault 2000 Germany and Formula Renault 3.5 in 2005 and 2006 with Jenzer Motorsport and Carlin Motorsport, he was also a member from the Red Bull Junior Team, Fleming finished 4th in the Formula Renault 2.0 Eurocup in 2004 and was rookie of the year in the Formula Renault 2000 Germany also in that year.  He also raced against fellow American and Californian and future Formula One Driver Scott Speed.  In 2005 he switched to the Formula Renault 3.5 with Swiss team Jenzer Motorsport, despite three DNS in the first 3 and missing one race of that season he finished 13th with 34 points with a best finish of 3rd in the second race in the Bugatti Circuit, to 2006 he switched to Carlin where he finished 6th in the first race of the season in Zolder, however he failed to qualify to the Second Race of the weekend and he finished 4th in Circuit de Monaco and 8th in both races in Istanbul Park, after this round he asked to leave Carlin and the Red Bull Junior Team, Red Bull officially released him and he was replaced by fellow Red Bull Junior Team member and Future Formula One Champion Sebastian Vettel, after leaving Red Bull, he returned to the United States to complete in the Atlantic Championship mid-season and he finished 20th with 45 points and since then has not raced anymore in a Major Series, until he decided to retire.  Now Colin is a high-level executive with Salesforce. Red Bull GmbH is an Austrian company which sells the Red Bull energy drink.  The company is also known for its sponsorship of a range of sporting events and teams.  In 2016, a total of 6.062 billion cans of Red Bull were sold worldwide in over 171 countries.  10,410 employees generated €5.11 billion in revenue.  The headquarters of Red Bull GmbH are located in Fuschl am See, Austria. Hwang Hee-Chan (Hangul: 황희찬; ] or ] ] ; born 26 January 1996) is a South Korean professional footballer who plays as striker for Austrian Red Bull Salzburg and the South Korea national team. Dietrich Mateschitz (born 20 May 1944) is an Austrian billionaire businessman.  He co-founded the Red Bull energy drink company, and holds 49% of the company's shares.  Mateschitz's net worth, as of 2017 , is estimated to be $15.4 billion. The 2015 Red Bull Air Race of Fort Worth was the seventh round of the 2015 Red Bull Air Race World Championship season, the tenth season of the Red Bull Air Race World Championship.  The event was held at the Texas Motor Speedway in Fort Worth, Texas. Red Bull Racing Team, also known as Team Red Bull, was a NASCAR team owned by Red Bull founders Dietrich Mateschitz and Chaleo Yoovidhya.  The team was based in Mooresville, North Carolina in the United States and was managed by Jay Frye.  The team suspended operations on December 8, 2011 and their cars were sold to BK Racing. The battle for the world’s premier 1-on-1 B-Boy World Championship comes to India for the first time ever in 2015, with the Red Bull BC One India Cypher.  Held in over 90 locations around the world, Red Bull BC One Cyphers are conducted to determine one winner from each participating country, who then battle it out at six regional Finals and then finally, one World Final, to determine the foremost B-Boy in the world.  Winner of Red Bull BC One India Cypher represents India in Red Bull BC One Asia Pacific Finals.  B-Boy Flying Machine won the inaugural edition of the Red Bull BC One India Cypher and represented India in Red Bull BC One Asia Pacific Finals. This is the list of Pakistani politicians by net worth as per the media reports and asset declaration.  As of 2008, former president Asif Ali Zardari is the richest Pakistani politician with net worth of US$35 billion and former Prime Minister Nawaz Sharif from Sharif family is 2nd richest for having net worth of US$30 billion.  MNA Noor Alam Khan is also among the richest with assets worth US$800 million in 2013.
Answer: $15.4 billion