<Table> World energy use per sector <Tr> <Th> Year </Th> <Th> 2000 </Th> <Th> 2008 </Th> <Th> 2000 </Th> <Th> 2008 </Th> </Tr> <Tr> <Th> Sector </Th> <Th_colspan="2"> TWh </Th> <Th_colspan="2">% * </Th> </Tr> <Tr> <Th> Industry </Th> <Td> 21,733 </Td> <Td> 27,273 </Td> <Td> 26.5 </Td> <Td> 27.8 </Td> </Tr> <Tr> <Th> Transport </Th> <Td> 22,563 </Td> <Td> 26,742 </Td> <Td> 27.5 </Td> <Td> 27.3 </Td> </Tr> <Tr> <Th> Residential and service </Th> <Td> 30,555 </Td> <Td> 35,319 </Td> <Td> 37.3 </Td> <Td> 36.0 </Td> </Tr> <Tr> <Th> Non-energy use </Th> <Td> 7,119 </Td> <Td> 8,688 </Td> <Td> 8.7 </Td> <Td> 8.9 </Td> </Tr> <Tr> <Th> Total * </Th> <Td> 81,970 </Td> <Td> 98,022 </Td> <Td> 100 </Td> <Td> 100 </Td> </Tr> <Tr> <Td_colspan="5"> Source: IEA 2010, Total is calculated from the given sectors Numbers are the end use of energy Total world energy supply (2008) 143,851 TWh </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> 2000 </Th> <Th> 2008 </Th> <Th> 2000 </Th> <Th> 2008 </Th> </Tr> <Tr> <Th> Sector </Th> <Th_colspan="2"> TWh </Th> <Th_colspan="2">% * </Th> </Tr> <Tr> <Th> Industry </Th> <Td> 21,733 </Td> <Td> 27,273 </Td> <Td> 26.5 </Td> <Td> 27.8 </Td> </Tr>

The main source of energy in the world is