The intermediate projections, which reflect the Trustees' best estimate, reflect changes in the working age population, particularly the increasing rate of retirement by the baby boom generation after 2010.
The projections show changes in population age statistics.
mnli hypothesis: The projections show changes in population age statistics. premise: The intermediate projections, which reflect the Trustees' best estimate, reflect changes in the working age population, particularly the increasing rate of retirement by the baby boom generation after 2010.