Frequencies for first 10,000 rows of cap_pps variable in psfhos201404 dataset :

Capital PPS |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,813       98.13       98.13
          B |          4        0.04       98.17
          C |        183        1.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018