Statistics for Census Data by Decade and Region                 10
                        Output Dataset From PROC UNIVARIATE

                                    Population
                        Population      Std     Population
Obs  Region     Decade     Mean      Deviation     Total    Pop_50  Pop_75  Pop_100

 1   Northeast   1980     5.45978     5.92525     49.138    3.1080   7.365   17.558
 2   Northeast   1990     5.64556     6.00833     50.810    3.2880   7.730   17.990
 3   South       1980     4.43329     3.32034     75.366    3.8940   5.347   14.225
 4   South       1990     5.02647     4.20752     85.450    4.0410   6.187   16.987
 5   Midwest     1980     4.90567     3.75037     58.868    4.3910   7.376   11.428
 6   Midwest     1990     4.97242     3.75702     59.669    4.6335   7.420   11.431
 7   West        1980     3.32154     6.21703     43.180    1.3030   2.717   23.667
 8   West        1990     4.06000     7.83953     52.780    1.5150   3.294   29.760