<Tr> <Td> Dentist </Td> <Td> Dentistry </Td> <Td> 37,800 </Td> <Td> 29,400 </Td> <Td> 720,000 </Td> </Tr> <Tr> <Td> Architect </Td> <Td> Architecture </Td> <Td> 37,320 </Td> <Td> 13,800 </Td> <Td> 600,000 </Td> </Tr> <Tr> <Td> Lawyer </Td> <Td> Law </Td> <Td> 36,120 </Td> <Td> 20,040 </Td> <Td> 3,000,000 </Td> </Tr> <Tr> <Td> Accountant </Td> <Td> Accountancy </Td> <Td> 35,880 </Td> <Td> 17,400 </Td> <Td> 216,000 </Td> </Tr>

What is brazil's main source of income