Frequencies for first 10,000 rows of prov2225 variable in pos2006 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,407       94.07       94.07
          0 |         29        0.29       94.36
          1 |        182        1.82       96.18
          2 |        378        3.78       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016