Table A5.2.-Mean absolute percentage errors by lead time for current expenditures, current expenditures per pupil in average daily attendance (ADA), and estimated salaries of classroom teachers in public elementary and secondary schools
Lead Time (years)
Mean absolute percentage errors
Current Expenditures
Current Expenditures
Estimated average annual salaries
Total
Per pupil in ADA
Total
Per pupil in ADA
One
1.1%
1.0%
1.2%
0.9%
1.3%
Two
2.1%
1.5%
1.7%
1.3%
1.6%
Three
2.1%
1.7%
1.8%
1.6%
2.0%
Four
2.2%
2.1%
2.1%
2.3%
4.0%
Five
3.2%
3.3%
3.6%
3.9%
6.6%
Six
4.0%
4.3%
4.6%
4.9%
9.3%
Seven
4.8%
5.6%
5.6%
6.3%
11.8%
Eight
5.2%
7.0%
6.1%
7.9%
13.8%
Nine
3.8%
7.1%
4.9%
8.2%
15.3%
Ten
2.5%
6.7%
3.6%
8.2%
15.7%
1Values for current expenditures and current fund expenditures per pupil in average daily attendance from Projections of Education Statistics to 1997-98, Projections of Education Statistics to 2000, and Projections of Education Statistics to 2001: An Update were increased by 1.4 percent to compensate for the change in the survey for current expenditures which occurred in 1988-89. -The actual value of current expenditures was not available to calculate mean absolute percentage errors of lead times of ten years. SOURCES: U.S. Department of Education, National Center for Education Statistics, Projections of Education Statistics, various issues. (This table was prepared May 2000.)
