| Source |
Leadtime(years) |
| 1 |
2 |
3 |
4 |
|
Absolute value of percentage difference between actual and projected values |
| Projections of Education Statistics to 2017 |
† |
0.7 |
1.1 |
1.4 |
| Projections of Education Statistics to 2018 |
0.4 |
0.7 |
0.8 |
1.1 |
| Projections of Education Statistics to 2019 |
# |
0.1 |
0.2 |
† |
| Projections of Education Statistics to 2020 |
0.2 |
0.4 |
† |
† |
|
Mean absolute percentage error |
| Example |
0.2 |
0.5 |
0.7 |
1.3 |