Given the data Insert a pivot table that displays: the four regions, how many bison there were in each region in 2017, and what percent of all bison lived in each region in 2017. Then answer, Among the four U.S. Regions, the _____ was home to the most bison in 2017. States in the region accounted for _____ bison, or _____% of all bison in the U.S.