Frequencies for first 10,000 rows of prov0685 variable in pos2001 dataset :

       esrd |
  network # |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,241       92.41       92.41
         02 |          1        0.01       92.42
         05 |          1        0.01       92.43
         08 |        115        1.15       93.58
         13 |         77        0.77       94.35
         14 |          1        0.01       94.36
         15 |        104        1.04       95.40
         16 |          2        0.02       95.42
         17 |        164        1.64       97.06
         18 |        294        2.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016