Frequencies for first 10,000 rows of cap_pps variable in psfsnf201404 dataset :

Capital PPS |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,237       82.37       82.37
          B |      1,762       17.62       99.99
          C |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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