Historical CPS employment for 1983-99 on the 2002 Census industry and occupational classifications


Background

In January 2003, the Current Population Survey (CPS or "household" survey) adopted the 2002 Census industry and occupational classification systems, which were derived, respectively, from the 2002 North American Industry Classification System (NAICS) and the 2000 Standard Occupational Classification (SOC). The introduction of the new industry and occupational classification systems created a complete break in comparability at all levels of industry and occupation aggregation. To provide users with a longer time series for analysis, the Bureau of Labor Statistics has reconstructed employment estimates by major occupation and by major industry for the years 1983-99 based on the new classification systems. These reconstructed series are available for both sexes, men, and women. Selected series have been seasonally adjusted. (For more information about the January 2003 change in CPS classification systems, see the page on the BLS website at www.bls.gov/cps/cpsoccind.htm.)

When the new classification systems were adopted, BLS released only a limited history—back to January 2000—of employment data by industry and occupation. The estimates for 2000-02 were based on survey data that had been dual-coded on both the 1990 and the 2002 Census classifications. Data prior to 2000 were coded only on the old classification systems and could not be re-tabulated on the new 2002 classifications. Employment series for both agriculture and related industries (total) and for nonagricultural industries (total) were linked with estimates tabulated on the new (2002) classification system to comprise the official series, despite comparability breaks beginning in January 2000. (The official agriculture and nonagricultural industry series can be retrieved from the BLS website at www.bls.gov/webapps/legacy/cpsatab8.htm.)

Constructing historical industry and occupation data with conversion factors

To construct CPS industry and occupational employment estimates prior to 2000, BLS used conversion factors created from the dual-coded survey microdata for 2000-02. The conversion factors reflect the percent of employment on the old classification that was re-distributed to the new classification. BLS created conversion factors for industry and occupational employment for both sexes combined and for men and women separately. The factors were aggregated into designated industry and occupation categories and averaged for the 2000-02 period. The factors then were applied to CPS industry and occupational employment estimates for the years 1983-99 to create employment series based on the 2002 industry and occupational classifications. For example, for the construction industry, 92 percent of employment on the old construction classification was re-classified to the new construction classification. The remaining 8 percent of employment was re-classified among other industry categories in the new classification.

The underlying employment estimates for 1983-99 used to create the constructed industry and occupational series were tabulated from public use microdata files and were not composited. It was not until January 1998 that new composite estimation procedures were introduced which allowed users of the survey microdata to replicate the official estimates released by BLS. Because uncomposited data were used here, the sum of the constructed series will differ from the composited published employment totals for 1983-99.

The accuracy of the constructed series is somewhat limited because the conversion factors are based on the distribution of employment that existed in 2000-02. That distribution may have changed over time, and, therefore, the constructed series may not reflect the actual employment distribution during earlier time periods. Furthermore, the process of dual-coding survey microdata may have introduced additional nonsampling error, specifically errors in assigning classifications.

Historical data available

BLS constructed not seasonally adjusted historical employment data for the industry and occupation categories listed below. Employment data back to 1983 are available for both sexes combined and for men and women separately.

For most series, the constructed data for 1983-99 are shown with the official series from January 2000 forward. The constructed series for agriculture (total) and nonagricultural industries (total) do not replace the official historical series and therefore are shown only for 1983-99.

The data may be retrieved from the BLS website by entering the series identification codes shown below in the box indicated at data.bls.gov/cgi-bin/srgate.

Not seasonally adjusted data Series identification code
Industry Both sexes Men Women

Agriculture, forestry, fishing, and hunting (reconstructed)

LNU62034560

LNU62035117

LNU62035121

Nonagricultural industries (reconstructed)

LNU62035019

LNU62035020

LNU62035022

Mining

LNU02034561

LNU02037823

LNU02037917

Construction

LNU02034562

LNU02037824

LNU02037918

Manufacturing

LNU02034563

LNU02037825

LNU02037919

Durable goods manufacturing

LNU02034564

LNU02037826

LNU02037920

Nondurable goods manufacturing

LNU02034565

LNU02037827

LNU02037921

Wholesale and retail trade

LNU02034566

LNU02037828

LNU02037922

Wholesale trade

LNU02034567

LNU02037829

LNU02037923

Retail trade

LNU02034568

LNU02037830

LNU02037924

Transportation and utilities

LNU02034570

LNU02037831

LNU02037925

Transportation and warehousing

LNU02034569

LNU02037832

LNU02037926

Utilities

LNU02037280

LNU02037833

LNU02037927

Information

LNU02034571

LNU02037834

LNU02037928

Financial activities

LNU02034572

LNU02037835

LNU02037929

Finance and insurance

LNU02037287

LNU02037836

LNU02037930

Real estate and rental and leasing

LNU02037290

LNU02037837

LNU02037931

Professional and business services

LNU02034573

LNU02037838

LNU02037932

Professional and technical services

LNU02037293

LNU02037839

LNU02037933

Management, administrative, and waste services

LNU02037294

LNU02037840

LNU02037934

Education and health services

LNU02034574

LNU02037841

LNU02037935

Educational services

LNU02037297

LNU02037842

LNU02037936

Health care and social assistance

LNU02037298

LNU02037843

LNU02037937

Hospitals

LNU02037299

LNU02037844

LNU02037938

Health services, except hospitals

LNU02037300

LNU02037845

LNU02037939

Social assistance

LNU02037301

LNU02037846

LNU02037940

Leisure and hospitality

LNU02034575

LNU02037847

LNU02037941

Arts, entertainment, and recreation

LNU02037302

LNU02037848

LNU02037942

Accommodation and food services

LNU02037303

LNU02037849

LNU02037943

Other services

LNU02034576

LNU02037850

LNU02037944

Other services, except private households

LNU02034577

LNU02037851

LNU02037945

Private households

LNU02034578

LNU02037852

LNU02037946

Public administration

LNU02034579

LNU02037853

LNU02037947



Not seasonally adjusted data Series identification code
Occupation Both sexes Men Women

Management, professional, and related occupations

LNU02032201

LNU02032468

LNU02032526

Management, business, and financial operations occupations

LNU02032202

LNU02032469

LNU02032527

Professional and related occupations

LNU02032203

LNU02032472

LNU02032530

Service occupations

LNU02032204

LNU02032481

LNU02032539

Sales and office occupations

LNU02032205

LNU02032487

LNU02032545

Sales and related occupations

LNU02032206

LNU02032488

LNU02032546

Office and administrative support occupations

LNU02032207

LNU02032489

LNU02032547

Natural resources, construction, and maintenance occupations

LNU02032208

LNU02032490

LNU02032548

Farming, fishing, and forestry occupations

LNU02032209

LNU02032491

LNU02032549

Construction and extraction occupations

LNU02032210

LNU02032492

LNU02032550

Installation, maintenance, and repair occupations

LNU02032211

LNU02032493

LNU02032551

Production, transportation, and material moving occupations

LNU02032212

LNU02032494

LNU02032552

Production occupations

LNU02032213

LNU02032495

LNU02032553

Transportation and material moving occupations

LNU02032214

LNU02032496

LNU02032554




The following industry employment data also are available on a seasonally adjusted basis for both sexes, men, and women. These seasonally adjusted data can be retrieved in the manner described above using the series identification codes provided. Only the industry series listed are currently suitable for seasonal adjustment.


Seasonally adjusted data Series identification code
Industry Both sexes Men Women

Agriculture, forestry, fishing, and hunting (reconstructed)

LNS62034560

LNS62035117

LNS62035121

Construction

LNS12034562

LNS12037824

LNS12037918

Retail trade

LNS12034568

LNS12037830

LNS12037924

Educational services

LNS12037297

LNS12037842

LNS12037936

Arts, entertainment, and recreation

LNS12037302

LNS12037848

LNS12037942


 

Last Modified Date: December 10, 2010