Frequencies for d3_ipf_c3_98 variable in prds_hosp10_yr2012 dataset :

d3_ipf_c3_9 |
          8 |      Freq.     Percent        Cum.
------------+-----------------------------------
        937 |          1        0.02        0.02
       1536 |          1        0.02        0.03
       4475 |          1        0.02        0.05
       7146 |          1        0.02        0.06
          . |      6,223       99.94      100.00
------------+-----------------------------------
      Total |      6,227      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018