Social Security Administration, Income of the Population, 55 or Older, 1998, (Washington, D.C.: U.S.
The people above 55 also represent the DC equal as other people.
mnli hypothesis: The people above 55 also represent the DC equal as other people. premise: Social Security Administration, Income of the Population, 55 or Older, 1998, (Washington, D.C.: U.S.