Frequencies for first 10,000 rows of pps_blend variable in psfhos dataset :

Federal PPS |
      Blend |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,514       95.14       95.14
          0 |        425        4.25       99.39
          1 |         57        0.57       99.96
          O |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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