Frequencies for d3_ipf_c2_98 variable in prds_hosp10_yr2011 dataset :

d3_ipf_c2_9 |
          8 |      Freq.     Percent        Cum.
------------+-----------------------------------
        215 |          1        0.02        0.02
       5770 |          1        0.02        0.03
      31297 |          1        0.02        0.05
     137309 |          1        0.02        0.07
          . |      6,146       99.93      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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