The Relationship Between The 1990 Census and ... - Census Bureau

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Example 5 (Table 3): For the EEO File and the 5% PUMS, three detailed categories shown in Table 1, 121 – “Mathematicians,” 123 – “Statisticians,” and 124 – “Miscellaneous mathematical occupations,” were combined into one aggregate category, also numbered 124 – “Miscellaneous mathematical science occupations, including mathematicians and statisticians.” As a result, Table 3 shows that the 1990 Census category 067, “Statisticians,” goes entirely (100 percent) into the Census 2000 aggregate category (124). This is a different result from that shown in Table 1, which displays all the detailed categories without any aggregation. For this report, aggregate category codes are shown in parentheses, such as (124), to distinguish them from the detailed categories with the same numeric code. Tables 4 and 5 convert the 72 industry categories and 94 occupation categories found on the 1990 product called STF-4 to the 90 industry categories and 93 occupation categories found on the equivalent 2000 product called SF-4. Tables 6 and 7 convert the 20 industry categories and 13 occupation categories found on the 1990 product called STF-3 to the 20 industry categories and 33 occupation categories found on the equivalent 2000 product called SF-3. Note: the conversion factors and numbers shown in Tables 6 and 7 differ from and replace preliminary counterparts that the Census Bureau published on its website early in 2003. The revisions were due primarily to coding corrections in the double-coded 1990 Census Sample used as the basis for calculating the conversion factors. See the sections above, “Double-coded 1990 Census Sample” and “Calculation of the Conversion Factors,” for more details. Tables 8 and 9 take all the information provided in Tables 1 and 2 for industry and occupation, respectively, redistribute the 1990 detailed categories into the 2000 detailed categories, and present the adjusted 1990 data side-by-side with the Census 2000 data for the same categories. Since the adjusted 1990 data are stated in 2000 terms, the two sets of data are comparable. Tables 8 and 9 also show the percent change in the labor force from 1990 to 2000 for each detailed category, and for every aggregate category, subtotal, and grouping shown in the various Census 2000 files and publications. Similarly, Tables 10 (industry) and 11 (occupation) take all the information provided in Tables 4 through 7, redistribute the 1990 Census groupings found on Summary Tape Files 3 and 4 into the Census 2000 groupings found on Summary Files 3 and 4, and present the adjusted 1990 data next to the comparable Census 2000 data for the same categories. Note that these tables present data for the employed instead of the total civilian labor force. Since these figures are derived from Tables 4 through 7, they also reflect revisions made to the conversion factors since similar data appeared on the Census website early in 2003. DATA HIGHLIGHTS The data in this section come from Tables 8 and 9. These tables show that the number of people in the civilian labor force increased by 11.5 percent from 123.5 million in 1990 to 137.7 million in 2000. Industries and occupations showing a percent increase significantly larger than 11.5 percent, therefore, grew at a faster rate than average. The following are highlights of the industry and occupation categories that showed the most change from 1990 to 2000, after adjusting the 1990 data into the 2000 classifications. 15
Industry 1. Small, new, and residual categories can be affected the most by definition changes. For example, the industry category showing the largest percent increase is “Other information services” (873.8 percent). This is a residual category (code 878) in the “Information” sector of the 2000 classification that did not exist as a separate category in 1990. It includes long-established industries such as news reporting services, news syndicates, press associations, and wire news services; most of these industries were classified as “Business services” (code 741) in 1990. Many relatively new industries, however, are also included in “Other information services,” which may have dramatically swelled the numbers in this 2000 category when compared to 1990. These new industries include internet access providers, online information access services, database information retrieval systems, and other “dot-coms.” 2. The industry category with the next largest percent increase is “Management of companies and enterprises” (547.1 percent). This category is a brand new sector created in the 1997 NAICS. It is supposed to comprise business establishments that hold the securities of companies for the purpose of owning a controlling interest, and establishments that administer, oversee, and manage their overall company or enterprise. This category did not exist as a separately identified category or group in the 1990 Census. In both the 1990 Census and in Census 2000, respondents tended not to provide the kind of information needed to distinguish workers in the management establishment of a larger corporation or enterprise from those that work in the production or service-providing establishments of the same company. As a result, this sector is probably underreported in both censuses, and the apparently huge increase may be an artifact of this underreporting. 3. Other categories with high percentage increases, each doubling or more from 1990 to 2000, were: “Other administrative and other support services” (208.1 percent); “Computer systems design and related services”(199.7 percent); “Home health care services” (136.1 percent); “Professional and commercial equipment and supplies, wholesale” (120.8 percent); “Radio, TV, and computer sales, retail” (103.5 percent); and “Electronic shopping and mail order houses, retail” (102.8 percent). 7 4. The categories showing the greatest losses, each losing more than 60 percent of its numbers from 1990 to 2000 were: “Resin, synthetic rubber and fibers, and filaments manufacturing” (-76.3 percent); “Electric and gas and other combination utilities” (-67.7 percent); “Metal ore mining” (-64.2 percent); and “Ordnance manufacturing” (-61.1 percent). Occupation 1. As you might expect, the major occupation group with the largest percent increase from 1990 to 2000 was the one for “Computer specialists,” which more than doubled from 1990 to 2000 (122.2 percent increase). Within this group several detailed categories showed huge increases, some over 1000 percent: “Database administrators” (1773.4 percent increase); “Computer support specialists” (1174.9 percent); “Network systems and data communications analysts” (1022.6 percent); “Network and computer systems administrators” (514.8 percent); and “Computer software engineers” (194.5 percent), among others. 7 Increases and decreases may not be statistically significantly different from each other. 16
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Page 7 and 8: After 1990, however, the crosswalks
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Page 11 and 12: apply those factors to census data
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Page 15: went to category 340, “Emergency
Page 19 and 20: The data presented in this report a
Page 22 and 23: 1990 CENSUS CODE APPENDIX A. 1990 C
Page 24 and 25: CENSUS CODE MANUFACTURING - Continu
Page 26 and 27: CENSUS CODE RETAIL TRADE 580 Lumber
Page 28: CENSUS CODE PROFESSIONAL AND RELATE
Page 31 and 32: 045 Metallurgical and materials (16
Page 33 and 34: Writers, Artists, Entertainers, and
Page 35 and 36: 327 Order clerks (4664) 328 Personn
Page 37 and 38: 457 Barbers (5252) 458 Hairdressers
Page 39 and 40: 594 Paving, surfacing, and tamping
Page 41 and 42: 749 Miscellaneous textile machine o
Page 44 and 45: APPENDIX C. CENSUS 2000 INDUSTRY CL
Page 46 and 47: Census 2000 1997 NAICS Code Categor
Page 48 and 49: Census 2000 1997 NAICS Code Categor
Page 50: Census 2000 1997 NAICS Code Categor
Page 53 and 54: Census 2000 2000 SOC Code Category
Page 64 and 65: APPENDIX E. BIBLIOGRAPHY OF RELATED
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APPENDIX G. GLOSSARY OF TERMS AND A
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Industry and Occupation The 1990 ce
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1990 Census Codes and Categories Ce
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1990 Census Codes and Categories Ta
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Table 2. 1990 Census Occupation Cla
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Table 7. 1990 Census STF-3 Occupati
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Table 6. 1990 Census STF-3 Industry
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Table 6. 1990 Census STF-3 Industry
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Table 5. 1990 STF-4 Occupation Grou
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Table 4. 1990 STF-4 Industry Groups
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Table 3. 1990 Census EEO File Occup
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Table 8. 1990 Census Redistributed
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Template for Converting 1990 Census
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