<Table> <Tr> <Th_colspan="3"> Population 5000--100BC </Th> </Tr> <Tr> <Th> Year </Th> <Th> Pop . </Th> <Th> ±% </Th> </Tr> <Tr> <Th> 5000 0BC </Th> <Td> below 6000 </Td> <Td>--</Td> </Tr> <Tr> <Th> 3000 0BC </Th> <Td> 100,000 </Td> <Td>--</Td> </Tr> <Tr> <Th> 1800 0BC </Th> <Td> 300,000 </Td> <Td> + 200.0% </Td> </Tr> <Tr> <Th> 01000BC </Th> <Td> 1,500,000 </Td> <Td> + 400.0% </Td> </Tr> <Tr> <Td_colspan="3"> Source: </Td> </Tr> </Table> <Tr> <Th_colspan="3"> Population 5000--100BC </Th> </Tr> <Tr> <Th> Year </Th> <Th> Pop . </Th> <Th> ±% </Th> </Tr> <Tr> <Th> 5000 0BC </Th> <Td> below 6000 </Td> <Td>--</Td> </Tr>

What was the population of britain in 1776