Frequencies for first 10,000 rows of popprovm variable in namcs1999 dataset :

estimated # |
 of inscope |
  providers |
     in psu |
   (masked) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,078       50.78       50.78
       2592 |        160        1.60       52.38
       2787 |        246        2.46       54.84
       3036 |        227        2.27       57.11
       3721 |        417        4.17       61.28
       5555 |        251        2.51       63.79
       5898 |        257        2.57       66.36
       6546 |        190        1.90       68.26
       6635 |        270        2.70       70.96
       8656 |        379        3.79       74.75
       9461 |        719        7.19       81.94
      10431 |        312        3.12       85.06
      11358 |        210        2.10       87.16
      14184 |        376        3.76       90.92
      21351 |        436        4.36       95.28
      22499 |        472        4.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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