In 1997, households originated only 16 percent of First-Class mail, down from 23 percent in 1990.
More households originated First-Class mail in 1997 than 1990.
mnli hypothesis: More households originated First-Class mail in 1997 than 1990. premise: In 1997, households originated only 16 percent of First-Class mail, down from 23 percent in 1990.