Frequencies for first 10,000 rows of srvy_prpse_cd variable in pos2009 dataset :

    TYPE OF |
     ACTION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,948       29.48       29.48
          2 |      6,530       65.30       94.78
          3 |        259        2.59       97.37
          4 |         10        0.10       97.47
          5 |        235        2.35       99.82
          8 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017