Downloadable Files
Annual Trustees Reports provide estimates describing the
actuarial status of Social Security's Old-Age and
Survivors Insurance (OASI) and Disability
Insurance (DI) Trust Funds under current law. In making these estimates, the Trustees
make key demographic
assumptions, economic
assumptions, and disability assumptions.
The intermediate set of assumptions (Alternative II) reflects the Trustees’ best estimates
of future experience, while the Alternative I and Alternative III sets of assumptions represent
low-cost (more optimistic) and high-cost (more pessimistic) scenarios, respectively, for the
trust funds’ future financial outlook.
Death Probabilities Tables: The downloadable files below provide historical and projected
probabilities of death by single year of age, sex, and year. In this context, a given probability of
death represents the chance that someone exactly the given age will die within one year. Actuarial Study Number 120 provides
additional information about this and other mortality concepts.
Period Life Tables: The downloadable files below provide historical and projected period life tables by single year of age, sex, and calendar year. A period life table represents the mortality experience within a given year. Actuarial Study Number 120 provides additional information about this and other mortality concepts. Section IV, which begins on page 3 of that study, contains definitions of life table functions, and also contains a brief discussion of life tables in general. Additionally, definitions specifically related to the columns used in these life tables can be found here.For the historical period, the interest rate used for calculating the annuity-related values shown in the life tables corresponds to the ultimate real interest rate used for the alternative II assumptions. For the projected period, it corresponds to the ultimate real interest rate used for the alternative I, II, and III assumptions.
Cohort Life Tables: The downloadable files below provide historical and projected cohort life tables by single year of age, sex, and birth year. A cohort life table represents the mortality experience in a series of years, based on an individual’s year of birth and the year in which the individual will reach each succeeding age. Actuarial Study Number 120 provides additional information about this and other mortality concepts. Section IV, which begins on page 3 of that study, contains definitions of life table functions, and also contains a brief discussion of life tables in general. Additionally, definitions specifically related to the columns used in these life tables can be found here. The interest rate used for calculating the annuity-related values shown in the life tables corresponds to the ultimate real interest rate used for the alternative I, II, and III assumptions.
Social Security Area Population Tables: The downloadable files below provide historical and projected populations of the Social Security area by single year of age, sex, marital status, and year. The Social Security area is composed of: (1) residents of the 50 States and the District of Columbia (adjusted for net census undercount); (2) civilian residents of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands; (3) Federal civilian employees and persons in the U.S. Armed Forces abroad and their dependents; (4) non-citizens living abroad who are insured for Social Security benefits; and (5) all other U.S. citizens abroad.
Period Life Tables: The downloadable files below provide historical and projected period life tables by single year of age, sex, and calendar year. A period life table represents the mortality experience within a given year. Actuarial Study Number 120 provides additional information about this and other mortality concepts. Section IV, which begins on page 3 of that study, contains definitions of life table functions, and also contains a brief discussion of life tables in general. Additionally, definitions specifically related to the columns used in these life tables can be found here.For the historical period, the interest rate used for calculating the annuity-related values shown in the life tables corresponds to the ultimate real interest rate used for the alternative II assumptions. For the projected period, it corresponds to the ultimate real interest rate used for the alternative I, II, and III assumptions.
Cohort Life Tables: The downloadable files below provide historical and projected cohort life tables by single year of age, sex, and birth year. A cohort life table represents the mortality experience in a series of years, based on an individual’s year of birth and the year in which the individual will reach each succeeding age. Actuarial Study Number 120 provides additional information about this and other mortality concepts. Section IV, which begins on page 3 of that study, contains definitions of life table functions, and also contains a brief discussion of life tables in general. Additionally, definitions specifically related to the columns used in these life tables can be found here. The interest rate used for calculating the annuity-related values shown in the life tables corresponds to the ultimate real interest rate used for the alternative I, II, and III assumptions.
Social Security Area Population Tables: The downloadable files below provide historical and projected populations of the Social Security area by single year of age, sex, marital status, and year. The Social Security area is composed of: (1) residents of the 50 States and the District of Columbia (adjusted for net census undercount); (2) civilian residents of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands; (3) Federal civilian employees and persons in the U.S. Armed Forces abroad and their dependents; (4) non-citizens living abroad who are insured for Social Security benefits; and (5) all other U.S. citizens abroad.