Appendix table 2. Number of workers(1) represented, private industry, National Compensation Survey, 2009 Estimated Occupational group(2) number of workers All workers............................. 101,181,600 Management, professional, and related 24,946,000 Management, business, and financial 8,142,600 Professional and related............ 16,803,400 Service............................... 21,762,600 Protective service.................. 1,022,500 Sales and office...................... 28,087,300 Sales and related................... 11,366,500 Office and administrative support... 16,720,800 Natural resources, construction, and maintenance........................... 8,725,500 Construction, extraction, farming, fishing, and forestry............... 4,633,400 Installation, maintenance, and repair.............................. 4,092,100 Production, transportation, and material moving....................... 17,660,200 Production.......................... 9,042,200 Transportation and material moving.. 8,618,000 1 The number of workers represented by the survey are rounded to the nearest 100. Estimates of the number of workers provide a description of the size and composition of the labor force included in the survey. Estimates are not intended, however, for comparison to other statistical series to measure employment trends or levels. 2 The 2000 Standard Occupational Classification system is used to classify workers.