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Table SA2. Standard errors for figure 2: Number and percentage distribution of public and private K–12 teachers in the U.S. teaching workforce, by years of teaching experience: 1999–2000
Years of teaching experience Number Percentage distribution

3 or fewer 9,900 0.3
4–6 8,900 0.3
7–9 7,700 0.2
10–12 6,200 0.2
13–15 6,000 0.2
16–18 5,800 0.2
19–21 5,700 0.2
22–24 6,400 0.2
25–27 5,500 0.1
28–30 5,900 0.2
31–33 4,100 0.1
34 or more 3,700 0.1

SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), “Public Teacher Questionnaire,” “Charter Teacher Questionnaire,” and “Private Teacher Questionnaire,” 1999–2000.

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National Center for Education Statistics - http://nces.ed.gov
U.S. Department of Education