Frequencies for p_cf2 variable in person dataset :

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,058       98.24       98.24
          3 |          3        0.28       98.51
          4 |          5        0.46       98.98
          5 |         10        0.93       99.91
         51 |          1        0.09      100.00
------------+-----------------------------------
      Total |      1,077      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016