Table A 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).
