Frequencies for prvdr_num variable in hcris2552_96_1995 dataset :

   provider |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
     010015 |          1       50.00       50.00
     420010 |          1       50.00      100.00
------------+-----------------------------------
      Total |          2      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018