Acknowledgments

This report was jointly prepared by John E. Jankowski, Jr., Program Director, and John R. Gawalt, Senior Science Resources Analyst, Science & Engineering Activities (ACT) Program, Division of Science Resources Studies (SRS), National Science Foundation.

Many other SRS staff members provided data for inclusion in this report and reviewed the material for accuracy and currency. Particular appreciation is given to Jennifer R. Gray for her assistance in assembling data for many of the document's charts and tables. Guidance and review were provided by Kenneth M. Brown, Director of SRS.