Appendix C Data Source and Accuracy Statements
Wednesday, November 21, 2012
Appendix C Data Source and Accuracy Statements
Table 4-1.
Average Response Rates for Monthly Surveys, 1998
Survey Site | Average universe site | Average number of respondents | Percent |
---|---|---|---|
Refinery | 252 | 243 | 96.3 |
Bulk terminal | 300 | 287 | 95.6 |
Pipeline | 81 | 80 | 99.3 |
Crude oil stocks | 174 | 169 | 99.1 |
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:1998).