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Number and percentage distribution of public school teacher stayers, movers, and leavers, by age and teaching experience in the base year: 2012–13

 
    Number of teachers by age in base year1   Percent of teachers by age in base year 1
Selected
school characteristic		   Total   Less than 30   30-39   40-49   50 or more
years		   Less than 30   30-39   40-49   50 or more
years		  
All public school teachers   3,377,900   515,900   982,200   843,300   1,036,400   15.3   29.1   25   30.7  
Teaching experience                                      
1–3 years   398,500   232,200   118,900   32,700   14,700 ! 58.3   29.8   8.2   3.7 !
4–9 years   919,500   283,700   415,000   131,400   89,500   30.9   45.1   14.3   9.7  
10–19 years   1,205,400   †   448,300   457,300   299,800   †   37.2   37.9   24.9  
20 years or more   854,500   †   †   221,900   632,500   †   †   26.0   74.0  
                                       
All stayers   2,846,500   406,800   847,400   759,500   832,800   14.3   29.8   26.7   29.3  
Teaching experience                                      
1–3 years   320,400   178,800   105,000   24,600 ! 12,100 ! 55.8   32.8   7.7   3.8 !
4–9 years   749,400   228,000   340,300   116,100   65,000   30.4   45.4   15.5   8.7  
10–19 years   1,066,200   †   402,000   414,300   249,800   †   37.7   38.9   23.4  
20 years or more   710,600   †   †   204,600   506,000   †   †   28.8   71.2  
                                       
All movers   271,900   70,700   83,100   49,900   68,200   26.0   30.6   18.3   25.1  
Teaching experience                                      
1–3 years   49,800   37,100   6,700   4,100 ! ‡   74.5   13.4   8.2 ! 3.8 !
4–9 years   107,600   33,600   44,100   11,900   18,100 ! 31.2   41.0   11.0   16.8 !
10–19 years   68,000   †   32,300   22,700   13,000   †   47.6   33.4   19.1  
20 years or more   46,500   †   †   11,200 ! 35,200   †   †   24.2 ! 75.8  
                                       
All leavers   259,400   38,400   51,700   33,900   135,400   14.8   19.9   13.1   52.2  
Teaching experience                                      
1–3 years   28,200   16,300   7,200 ! 4,000 ! 700 ! 57.8   25.6 ! 14.1 ! ‡  
4–9 years   62,500   22,100   30,500 ! 3,500 ! ‡   35.4   48.8   5.5 ! 10.3 !
10–19 years   71,200   †   13,900   20,300 ! 37,000 ! †   19.6   28.5 ! 51.9  
20 years or more   97,400   †   †   6,100 ! 91,300   †   †   6.3 ! 93.7  
† Not applicable.
! Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 percent and 50 percent (i.e., the standard error is at least 30 percent and less than 50 percent of the estimate).
‡ Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate).
1Base year refers to 2011–12.
NOTE: "Stayers" are teachers who were teaching in the same school in the current school year as in the base year. "Movers" are teachers who were still teaching in the current school year, but had moved to a different school after the base year. "Leavers" are teachers who left the teaching profession after the base year. Detail may not sum to totals because of rounding and because some data are not shown.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Teacher Follow-up Survey (TFS), "Current and Former Teacher Data Files," 2012–13.

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