Frequencies for d3_ipf_c2_41 variable in prds_hosp10_yr2010 dataset :

d3_ipf_c2_4 |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1255 |          1        0.04        0.04
      11495 |          1        0.04        0.09
          . |      2,321       99.91      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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