Appendix table 2. Number of workers represented, state and local government, 2016 Estimated Occupational group(1) number of workers(2) All workers............................. 18,932,000 Management, professional, and related 10,858,000 Professional and related.......... 9,272,100 Teachers........................ 5,005,000 Primary, secondary, and special education school teachers...................... 3,838,600 Service............................... 3,862,500 Protective service.................. 1,831,800 Sales and office...................... 2,663,800 Office and administrative support... 2,579,600 Natural resources, construction, and maintenance........................... 794,800 Production, transportation, and material moving....................... 752,900 1 The 2010 Standard Occupational Classification system is used to classify workers. 2 The numbers 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. Source: Bureau of Labor Statistics, National Compensation Survey.