Conversion of 2000 Summary File 3 Data for uscd106       14:38 Wednesday, June 17, 2009   5

                           Variable     N            Mean         Std Dev         Minimum         Maximum
                           ------------------------------------------------------------------------------
                           FirstObs     1         7026.00               .         7026.00         7026.00
                           LastObs      1       345044.00               .       345044.00       345044.00
                           ------------------------------------------------------------------------------
                                         Conversion of 2000 Summary File 3 Data for uscd106       14:38 Wednesday, June 17, 2009   6
                             Proc Tabulate Report: Geography Summary Levels: # Occurrences & Total Pops
                                              (excludes cases where geocomp is not 00)

                                                       ----------------------
                                                       |    sumlev_code     |
                                                       |--------------------|
                                                       |        500         |
                                                       |--------------------|
                                                       |   Congressional    |
                                                       |      District      |
                                                       |--------------------|
                                                       |       Pop100       |
                                                       |--------------------|
                                                       |   N   |    Sum     |
                                                       |-------+------------|
                                                       |    437| 285,230,516|
                                                       ----------------------