<Tr> <Td> 1860 </Td> <Td> None </Td> <Td> 31,443,321 </Td> <Td> 31,443,231 </Td> <Td> 83,904,285 </Td> <Td> 2.86 </Td> <Td> None </Td> </Tr> <Tr> <Td> 1864 </Td> <Td> $0.20 </Td> <Td> 34,046,000 </Td> <Td> 34,046,000 </Td> <Td> 85,295,393 </Td> <Td> 2.57 </Td> <Td> 17,059,792 </Td> </Tr> <Tr> <Td> 1865 </Td> <Td> 2.00 </Td> <Td> 34,748,000 </Td> <Td> 125,575,875 </Td> <Td> 37,979,104 </Td> <Td> 0.3 </Td> <Td> 75,958,208 </Td> </Tr> <Tr> <Td> 1866 </Td> <Td> 2.00 </Td> <Td> 35,469,000 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

What led to the prohibition of alcohol in the 1920s