<Tr> <Td> 1950 </Td> <Td> 22.8 </Td> <Td> 20.3 </Td> </Tr> <Tr> <Td> 1960 </Td> <Td> 22.8 </Td> <Td> 20.3 </Td> </Tr> <Tr> <Td> 1970 </Td> <Td> 23.2 </Td> <Td> 20.6 </Td> </Tr> <Tr> <Td> 1980 </Td> <Td> 24.7 </Td> <Td> 22.0 </Td> </Tr>

What was the population of colonial america around 1765