<Tr> <Td> 1980 </Td> <Td> 14,608,673 </Td> <Td> </Td> <Td> 63.8% </Td> </Tr> <Tr> <Td> 1990 </Td> <Td> 22,354,059 </Td> <Td> </Td> <Td> 53.0% </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> 35,305,818 </Td> <Td> </Td> <Td> 57.9% </Td> </Tr> <Tr> <Td> </Td> <Td> 50,477,594 </Td> <Td> </Td> <Td> 43.0% </Td> </Tr>

What are the three largest latino groups in the us