Frequencies for first 10,000 rows of popprovm variable in namcs1996 dataset :

estimated # |
 of inscope |
  providers |
     in psu |
   (masked) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,310       53.10       53.10
       2236 |        122        1.22       54.32
       2373 |        178        1.78       56.10
       2492 |        118        1.18       57.28
       2988 |        415        4.15       61.43
       4339 |        364        3.64       65.07
       4465 |        175        1.75       66.82
       4809 |        405        4.05       70.87
       4997 |        186        1.86       72.73
       5672 |        231        2.31       75.04
       9094 |        203        2.03       77.07
       9680 |        409        4.09       81.16
       9700 |        232        2.32       83.48
      12245 |        556        5.56       89.04
      15840 |        675        6.75       95.79
      16980 |        421        4.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016