<Table> Domino's Pizza Inc . <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Domino's corporate headquarters in Ann Arbor, Michigan </Td> </Tr> <Tr> <Th> Trading name </Th> <Td> Domino's </Td> </Tr> <Tr> <Th> Type </Th> <Td> Public </Td> </Tr> <Tr> <Th> Traded as </Th> <Td> <Ul> <Li> NYSE: DPZ </Li> <Li> S&P 400 component </Li> </Ul> </Td> </Tr> <Tr> <Th> ISIN </Th> <Td> US25754A2015 </Td> </Tr> <Tr> <Th> Industry </Th> <Td> <Ul> <Li> Food delivery </Li> <Li> Franchising </Li> <Li> Restaurants </Li> </Ul> </Td> </Tr> <Tr> <Th> Founded </Th> <Td> (June 10, 1960; 57 years ago (1960 - 06 - 10)) in Ypsilanti, Michigan, US </Td> </Tr> <Tr> <Th> Founders </Th> <Td> <Ul> <Li> James Monaghan </Li> <Li> Tom Monaghan </Li> </Ul> </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Domino's Farms Office Park, Ann Arbor, Michigan, US </Td> </Tr> <Tr> <Th> Number of locations </Th> <Td> 13,811 (2017) </Td> </Tr> <Tr> <Th> Area served </Th> <Td> Worldwide </Td> </Tr> <Tr> <Th> Key people </Th> <Td> <Ul> <Li> Dave Brandon (Chairman) </Li> <Li> J. Patrick Doyle (CEO) </Li> <Li> Jeffrey Lawrence (CFO) </Li> </Ul> </Td> </Tr> <Tr> <Th> Products </Th> <Td> <Ul> <Li> Chicken wings </Li> <Li> Dessert </Li> <Li> Pasta </Li> <Li> Pizza </Li> <Li> Submarine sandwiches </Li> </Ul> </Td> </Tr> <Tr> <Th> Revenue </Th> <Td> <Ul> <Li> US $2.47 billion (2016) </Li> <Li> US $2.21 billion (2015) </Li> </Ul> </Td> </Tr> <Tr> <Th> Operating income </Th> <Td> <Ul> <Li> US $454 million (2016) </Li> <Li> US $405.4 million (2015) </Li> </Ul> </Td> </Tr> <Tr> <Th> Profit </Th> <Td> <Ul> <Li> US $214.7 million (2016) </Li> <Li> US $306.2 million (2015) </Li> </Ul> </Td> </Tr> <Tr> <Th> Number of employees </Th> <Td> <Ul> <Li> 260,000 (2016) </Li> </Ul> </Td> </Tr> <Tr> <Th> Website </Th> <Td> dominos.com </Td> </Tr> <Tr> <Td_colspan="2"> Footnotes / references </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Domino's corporate headquarters in Ann Arbor, Michigan </Td> </Tr>

How many dominos stores are there in the world
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