Frequencies for provider variable in epo_costs265_94_2011 dataset :

   Provider |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
     042515 |          1        7.14        7.14
     042551 |          1        7.14       14.29
     052565 |          1        7.14       21.43
     082519 |          1        7.14       28.57
     112518 |          1        7.14       35.71
     162540 |          1        7.14       42.86
     212625 |          1        7.14       50.00
     212654 |          1        7.14       57.14
     362699 |          1        7.14       64.29
     362704 |          1        7.14       71.43
     392503 |          1        7.14       78.57
     392591 |          1        7.14       85.71
     452618 |          1        7.14       92.86
     452655 |          1        7.14      100.00
------------+-----------------------------------
      Total |         14      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018