Frequencies for first 10,000 rows of prov4275 variable in posclia2010 dataset :

 affiliated |
provider #8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,990       99.90       99.90
 01D0961241 |          1        0.01       99.91
 01D0961243 |          6        0.06       99.97
 01D0962662 |          2        0.02       99.99
 01D0988984 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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