Percentage of public school teachers based on years of teaching experience, average total years of teaching experience, percentage of teachers based on years teaching at current school, and average years teaching at current school, by selected school characteristics: 2015–16 (rev)

		Years of teaching experience										Years teaching at current school
Selected school characteristic		Less than 4 years		4–9 years		10–14 years		15 or more years		Average years teaching		Less than 4 years		4–9 years		10–14 years		15 or more years		Average years at current school
All public schools		15.1		23.2		19.4		42.3		13.7		39.6		24.9		15.3		20.2		8.2
School classification
Traditional public		89.8		92.2		95.1		97.0		14.0		91.2		94.8		96.9		98.3		8.4
Charter school		10.2		7.8		4.9		3.0		9.6		8.8		5.2		3.1		1.7		4.4
Community type
City1		33.0		30.6		29.0		27.5		13.1		33.1		29.5		26.0		24.3		7.2
Suburban		33.6		38.4		40.4		39.1		13.9		36.2		39.3		43.0		38.1		8.3
Town		12.0		11.4		11.3		12.4		14.3		11.3		11.4		11.4		14.1		9.0
Rural		21.3		19.5		19.4		20.9		14.0		19.4		19.8		19.6		23.5		8.8
School level
Primary		48.6		47.6		47.4		48.7		13.7		49.8		47.5		45.6		47.7		8.0
Middle		18.0		18.0		18.7		17.5		13.5		18.2		18.0		18.4		16.9		8.0
High		26.0		27.6		28.3		28.5		14.1		25.2		28.6		31.1		29.8		8.7
Combined		7.4		6.8		5.6		5.4		12.8		6.8		6.0		4.9		5.5		7.6
Student enrollment
Less than 100		1.5		1.3		1.2		1.8		15.3		1.7		1.2		1.4	!	1.8	!	8.3
100–199		3.5		3.3		2.7		3.2		13.8		3.6		3.0		2.4		3.1		7.7
200–499		29.6		28.0		27.2		29.8		13.9		29.4		27.3		26.3		31.7		8.4
500–749		28.4		28.9		28.0		27.4		13.5		28.6		27.6		27.5		27.9		8.1
750–999		15.6		14.0		15.4		14.3		13.5		14.8		15.4		15.0		13.1		7.9
1,000 or more		21.4		24.5		25.5		23.4		13.8		22.0		25.4		27.4		22.5		8.3
Percent of K–12 students who were approved for free or reduced price lunches
0–34		26.6		30.9		33.1		34.2		14.3		28.9		32.7		37.1		33.6		8.6
35–49		13.1		13.7		14.5		14.7		14.2		13.3		14.6		14.0		15.6		8.7
50–74		23.6		22.0		21.6		21.8		13.6		22.2		22.2		21.3		22.3		8.2
75 or more		33.2		29.9		27.6		26.5		13.0		32.0		27.5		24.5		25.8		7.4
School did not participate in free  or reduced-price lunch program		3.4		3.6		3.2		2.9		13.1		3.6		3.1		3.0		2.7		7.4
! 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).
1Interpret data on city teachers with caution. After nonresponse adjustments, the nonresponse bias for this category is greater than for other characteristics.
NOTE: Teachers include both full-time and part-time teachers. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Teacher and Principal Survey (NTPS), "Public School Teacher Data File," 2015–16.

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