Appendix E - Data Source and Accuracy Statements
Chapter 4 - Energy and the Environment
Average Response Rates for Monthly Surveys, 2007
|Survey Site||Average universe site||Average number of respondents||Percent|
|Crude oil stocks||133||133||99.8|
NOTE: The average response rate is calculated by summing individual monthly response rates and dividing by 12.
SOURCE: Tammy G. Heppner and Carol L. French, Energy Information Administration, U.S. Department of Energy, Accuracy of Petroleum Supply Data (Washington, DC:2009).