<Ul> <Li> Accounting </Li> <Li> Legal services </Li> <Li> Management consulting </Li> </Ul> <P> Below is a list of countries by service output at market exchange rates in 2016 . </P> <Table> Largest countries by tertiary output in Nominal GDP, according to IMF and CIA World Factbook, 2016 <Tr> <Th> Economy </Th> <Th> Countries by tertiary output in 2016 (billions in USD) </Th> </Tr> <Tr> <Th> (01) United States </Th> <Td> 14,762 </Td> </Tr> <Tr> <Th> (--) European Union </Th> <Td> 12,077 </Td> </Tr> <Tr> <Th> (02) China </Th> <Td> 5,688 </Td> </Tr> <Tr> <Th> (03) Japan </Th> <Td> 3,511 </Td> </Tr> <Tr> <Th> (04) Germany </Th> <Td> 2,395 </Td> </Tr> <Tr> <Th> (05) United Kingdom </Th> <Td> 2,109 </Td> </Tr> <Tr> <Th> (06) France </Th> <Td> 1,941 </Td> </Tr> <Tr> <Th> (07) Italy </Th> <Td> 1,366 </Td> </Tr> <Tr> <Th> (08) Brazil </Th> <Td> 1,295 </Td> </Tr> <Tr> <Th> (09) Canada </Th> <Td> 1,081 </Td> </Tr> <Tr> <Th> (10) India </Th> <Td> 1,024 </Td> </Tr> <Tr> <Th> (11) Spain </Th> <Td> 926 </Td> </Tr> <Tr> <Th> (12) Australia </Th> <Td> 859 </Td> </Tr> <Tr> <Th> (13) South Korea </Th> <Td> 850 </Td> </Tr> <Tr> <Th> (14) Russia </Th> <Td> 797 </Td> </Tr> <Tr> <Th> (15) Mexico </Th> <Td> 661 </Td> </Tr> <Tr> <Th> (16) Turkey </Th> <Td> 551 </Td> </Tr> <Tr> <Th> (17) Netherlands </Th> <Td> 543 </Td> </Tr> <Tr> <Th> (18) Switzerland </Th> <Td> 484 </Td> </Tr> <Tr> <Th> (19) Indonesia </Th> <Td> 429 </Td> </Tr> <Tr> <Th> (20) Belgium </Th> <Td> 362 </Td> </Tr> <Tr> <Td_colspan="10"> <P> The twenty largest countries by tertiary output in 2016, according to the IMF and CIA World Factbook . </P> </Td> </Tr> </Table> <Tr> <Th> Economy </Th> <Th> Countries by tertiary output in 2016 (billions in USD) </Th> </Tr>

Why does the tertiary sector form such a large part of the economy of developed countries