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

       AIDE |
TRAINING/CO |
   MPETENCY |
   PROGRAMS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,583       85.83       85.83
          1 |         25        0.25       86.08
          2 |        550        5.50       91.58
          3 |        198        1.98       93.56
          4 |        644        6.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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