<Table> World Trade Organization <Tr> <Td_colspan="2"> Organisation mondiale du commerce (in French) Organización Mundial del Comercio (in Spanish) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Members Members, dually represented by the EU Observers Non-participant states </Td> </Tr> <Tr> <Th> Formation </Th> <Td> 1 January 1995; 23 years ago (1995 - 01 - 01) </Td> </Tr> <Tr> <Th> Type </Th> <Td> International trade organization </Td> </Tr> <Tr> <Th> Purpose </Th> <Td> Regulate international trade </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Centre William Rappard, Geneva, Switzerland </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 46 ° 13 ′ 27" N 06 ° 08 ′ 58" E ﻿ / ﻿ 46.22417 ° N 6.14944 ° E ﻿ / 46.22417; 6.14944 Coordinates: 46 ° 13 ′ 27" N 06 ° 08 ′ 58" E ﻿ / ﻿ 46.22417 ° N 6.14944 ° E ﻿ / 46.22417; 6.14944 </Td> </Tr> <Tr> <Th> Region served </Th> <Td> Worldwide </Td> </Tr> <Tr> <Th> Membership </Th> <Td> 164 member states </Td> </Tr> <Tr> <Th> Official language </Th> <Td> English, French, Spanish </Td> </Tr> <Tr> <Th> Director - General </Th> <Td> Roberto Azevêdo </Td> </Tr> <Tr> <Th> Budget </Th> <Td> 197.2 million Swiss francs (approx. 209 million US $) in 2017 . </Td> </Tr> <Tr> <Th> Staff </Th> <Td> 640 </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.wto.org </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Organisation mondiale du commerce (in French) Organización Mundial del Comercio (in Spanish) </Td> </Tr>

How many member countries are there in wto at present