POPULATION PROJECTIONS OF THE UNITED STATES BY AGE, SEX, RACE, HISPANIC ORIGIN, AND NATIVITY: 1999 TO 2100 Source: Population Projections Program, Population Division, U.S. Census Bureau, Washington, D.C. 20233 (301) 763-2436 Internet Release Date: May 2000 I. DATA FILE DESCRIPTION (NP-D5) Component Assumptions of the Resident Population by Age, Sex, Race, and Hispanic Origin: Lowest, Middle, and Highest Series, 1999 to 2100. (NP-D5-A) LIFE TABLES The mortality assumptions are represented as life tables for selected calendar years from 1999 to 2100, and are published for the total population and by sex, race, and Hispanic origin. Data are presented annually from 1999 to 2010. After 2010, data for 2015 to 2100 are in five year intervals. The life tables are available for the middle series and are only accessible on the World Wide Web. There are no corresponding electronic products. Please note that the data published in these files may differ slightly from the data published in Table (C) of "Methodology and Assumptions for the Population Projections of the United States: 1999 to 2100, Working Paper #38" due to rounding. II. UNIVERSE DESCRIPTION The projections are produced for the resident population of the United States which includes people who reside in the 50 states and the District of Columbia. They exclude residents of the Commonwealth of Puerto Rico, and residents of the outlying areas under United States sovereignty or jurisdiction (principally American Samoa, Guam, Virgin Islands of the United States, and the Commonwealth of the Northern Mariana Islands). The definition of residence conforms to the criteria used in the 1990 census, which defines a resident of a specified area as a person "usually resident" in that area. The projections exclude the United States Armed Forces Overseas, as well as civilian United States citizens whose usual place of residence is outside the United States. III. TECHNICAL DESCRIPTION (NP-D5-A) LIFE TABLES FILE TYPE: ASCII FILE SIZE: File Name* Number of Records Columns Variables Bytes LT99_10.A 2,908,800 36,360 78 13 LT15_55.A 2,181,600 27,270 78 13 LT60_00.A 2,181,600 27,270 78 13 SORT SEQUENCE: The records are first sorted by series, followed by race and Hispanic origin, year, sex, and single year of age. * The extension represents the series: A=middle B=lowest C=highest. IV. EXPLANATION OF DATA FIELDS Series: The extension for each file name describes the series. The letter "A" represents middle series data; "B," the lowest series; and "C," the highest series. Year: The life tables are presented for two calendar years, 1999 and 2100. Use interpolation techniques to derive points between these years. Sex: 0 = both sexes combined 1 = male 2 = female Age: Ages in the life tables are listed for the starting and ending ages separately for each year. The table begins with 0 (under one year), become 1 year old, and end with 100 and over, becoming 101 years old and over. Race and Hispanic The data are shown for the Total; White; Black; American Origin: Indian or Alaska Native; and Asian and Pacific Islander populations. Data are also shown for the Hispanic origin population, and the non-Hispanic White; non-Hispanic Black; non-Hispanic American Indian or Alaska Native; and non-Hispanic Asian and Pacific Islander populations. Persons of Hispanic origin may be of any race. A = Total population B = White population C = Black population D = American Indian or Alaska Native population E = Asian and Pacific Islander population F = Hispanic origin population G = non-Hispanic White H = non-Hispanic Black I = non-Hispanic American Indian or Alaska Native population J = non-Hispanic Asian and Pacific Islander population V. RECORD LAYOUT Life Table Files: File Name File Description LT99_10.A Life tables for the US resident population by age, sex, race, and Hispanic origin: middle series, 1999 to 2010 (annual) LT15_55.A Life tables for the US resident population by age, sex, race, and Hispanic origin: middle series, 2015 to 2055 LT60_00.A Life tables for the US resident population by age, sex, race, and Hispanic origin: middle series, 2060 to 2100 Location Length Type Data 1-2 2 Character Series (A) 3-4 2 Character Identification (LT) 5-8 4 Numeric Year (four digit) 9-10 2 Numeric Sex (0, 1, 2) 11-12 2 Character Race 13-15 3 Numeric Age at the beginning of the interval 16-18 3 Numeric Age at the end of the interval 19-28 10 Numeric Q (x) Proportion of persons alive at beginning of interval dying during interval 29-38 10 Numeric l (x) Number of persons living at beginning of age interval 39-48 10 Numeric D (x) Number of persons dying during age interval 49-58 10 Numeric L (x) Number of person years lived within the age interval 59-68 10 Numeric T (x) Total number of person years lived after the beginning of indicated age interval 69-78 10 Numeric E (x) Life expectancy: average number of years of life remaining at beginning of age interval VI. RACE AND ETHNIC DEFINITIONS AND CONCEPTS The racial classification used by the Census Bureau generally adheres to the guidelines in Federal Statistical Directive No. 15, issued by the Office of Management and Budget, which provides standards on race and Hispanic origin categories for statistical reporting to be used by all Federal agencies. The race and Hispanic origin categories are defined as follows: American Indian or Alaska Native: A person having origins in any of the original peoples of North America, who maintains cultural identification through tribal affiliation or community recognition. Previously, this category was referred to as American Indian, Eskimo and Aleut. Asian and Pacific Islander: A person having origins in any of the original peoples of the Far East, Southeast Asian, the Indian subcontinent, or the Pacific Islands. This area includes, for example, China, India, Japan, Korea, the Philippine Islands, and Samoa. Black: A person having origins in any of the black racial groups of Africa. Hispanic: A person of Mexican, Puerto Rican, Cuban, Central or South American or other Spanish culture or origin, regardless of race. White: A person having origins in any of the original peoples of Europe, North Africa, or the Middle East. VII. ASSUMPTIONS AND METHODOLOGY The population projections are created using the cohort-component model. For a detailed description of the model, the assumptions, and the data used to create these projections, see the working paper, "Methodology and Assumptions for the Population Projections of the United States: 1999 to 2100, Working Paper #38." This paper can be obtained at the national projections internet site on the World Wide Web or by contacting the Statistical Information Staff by telephone at (301) 763-2422, or by e-mail at POP@CENSUS.GOV (please include telephone number).