or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population 1 in 5 6 million American or 2.5% of the voting age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population or 2.5 percent of the voting-age population