<Tr> <Td_colspan="2"> American Indian </Td> <Td> </Td> <Td_colspan="2"> 0.5% </Td> </Tr> <Tr> <Td_colspan="2"> Native Hawaiian and Other Pacific Islander </Td> <Td> </Td> <Td_colspan="2"> 0.1% </Td> </Tr> <Tr> <Td_colspan="2"> Other races </Td> <Td> </Td> <Td_colspan="2"> 7.8% </Td> </Tr> <P> Between 1960 and 1990 the census questionnaire in Puerto Rico did not ask about race or ethnicity . The 2000 United States Census included a racial self - identification question in Puerto Rico . According to the census, most Puerto Ricans identified as White and Hispanic; few identified as Black or some other race . </P>

When was puerto rico made a territory of the united states