Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Coverage rate of 80% and 95% of prediction intervals based on model trained with data before 2005 and WPP 2008 Revision.
| WPP Version | Testing Period | Original Method | Proposed Method | ||
|---|---|---|---|---|---|
| 95% PI | 80% PI | 95% PI | 80% PI | ||
| WPP 2008 | 2005–2010 | 98.5% | 92.9% | 98.5% | 88.0% |
| WPP 2010 | 2005–2010 | 89.8% | 73.0% | 97.4% | 83.3% |
| WPP 2012 | 2005–2010 | 79.9% | 62.9% | 95.4% | 79.1% |
| WPP 2015 | 2005–2010 | 78.6% | 61.3% | 92.1% | 77.7% |
| WPP 2017 | 2005–2010 | 78.4% | 62.4% | 92.4%, | 78.1% |
