Complex sentence: Averaging between these two figures would suggest that 62% of the entire Puerto Rican population descend, at least in part, from the Taíno, and that the Taíno contribution to the current population is considerable.
Split into simpler sentences: Averaging between these two figures would suggest that 62% of the entire Puerto Rican population descend at least in part from the Taíno. This high frequency indicates the Taíno contribution to the current population is considerable.