<Table> The Ritz - Carlton <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Type </Th> <Td> Subsidiary </Td> </Tr> <Tr> <Th> Industry </Th> <Td> Hospitality </Td> </Tr> <Tr> <Th> Founded </Th> <Td> 1983 (1983) </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Chevy Chase, Maryland, United States </Td> </Tr> <Tr> <Th> Number of locations </Th> <Td> 130 hotels worldwide </Td> </Tr> <Tr> <Th> Key people </Th> <Td> Bill Marriott, (Chairman) Arne Sorenson, (Chief Executive Officer) Herve Humler, (President & Chief Operating Officer) Kathleen Oberg, (Chief Financial Officer) Bob Kharazmi, (Global Officer, Worldwide Operations) Ed French, (Global Officer, Sales & Marketing </Td> </Tr> <Tr> <Th> Revenue </Th> <Td> US $3 billion (2012) </Td> </Tr> <Tr> <Th> Number of employees </Th> <Td> 40,000 (in 2017) </Td> </Tr> <Tr> <Th> Parent </Th> <Td> Marriott International </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.ritzcarlton.com </Td> </Tr> </Table> <Tr> <Th> Type </Th> <Td> Subsidiary </Td> </Tr>

How many ritz hotels are there in the world