<Tr> <Td> EU </Td> <Td> 1,204 </Td> <Td> 2,093 </Td> <Td> 2,428 </Td> </Tr> <Tr> <Td> Russia </Td> <Td> 245 </Td> <Td> 239 </Td> <Td> 271 </Td> </Tr> <Tr> <Td> China </Td> <Td> 2,613 </Td> <Td> 3,374 </Td> <Td> 3,847 </Td> </Tr> <Tr> <Td> Asia (- China) </Td> <Td> 4,147 </Td> <Td> 4,996 </Td> <Td> 5,361 </Td> </Tr>

Where does the main source of energy come from