Frequencies for first 10,000 rows of esrd_ntwrk_num variable in pos2011 dataset :

       ESRD |
    Network |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,179       91.79       91.79
         05 |          1        0.01       91.80
         08 |        144        1.44       93.24
         13 |         98        0.98       94.22
         15 |        130        1.30       95.52
         16 |          9        0.09       95.61
         17 |        148        1.48       97.09
         18 |        291        2.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019