<Tr> <Td> Money Supply M2 ($billions) </Td> <Td> 46.6 </Td> <Td> 42.7 </Td> <Td> 32.2 </Td> <Td> 45.7 </Td> <Td> 49.3 </Td> <Td> 55.2 </Td> </Tr> <Tr> <Td> Exports ($billions) </Td> <Td> 5.24 </Td> <Td> 2.42 </Td> <Td> 1.67 </Td> <Td> 3.35 </Td> <Td> 3.18 </Td> <Td> 4.02 </Td> </Tr> <Tr> <Td> Unemployment (% of civilian work force) </Td> <Td> 3.1 </Td> <Td> 16.1 </Td> <Td> 25.2 </Td> <Td> 13.8 </Td> <Td> 16.5 </Td> <Td> 13.9 </Td> </Tr> <P> in 1929 dollars 1935--39 = 100 </P>

How were the american colonies a money maker for the british