Frequencies for first 10,000 rows of popsmas variable in natlterr2000 dataset :

   PMSA/MSA |
 Population |
       Size |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,991       69.91       69.91
          2 |      1,438       14.38       84.29
          9 |      1,571       15.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015