Frequencies for d_4_ipf_c11_66 variable in prds_hosp10_yr2017 dataset :

   Physical |
    Therapy |
    D00B184 |
      06600 |
      01100 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          3        0.08        0.08
          2 |          1        0.03        0.11
          4 |          1        0.03        0.13
          9 |          1        0.03        0.16
         17 |          1        0.03        0.19
         22 |          1        0.03        0.21
         43 |          1        0.03        0.24
         50 |          1        0.03        0.27
        166 |          1        0.03        0.29
        766 |          1        0.03        0.32
       1162 |          1        0.03        0.35
       2684 |          1        0.03        0.37
          . |      3,735       99.63      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018