Frequencies for first 10,000 rows of prov2225 variable in pos2004 dataset :

       srv: |
    medical |
   supplies |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,479       94.79       94.79
          0 |         26        0.26       95.05
          1 |        174        1.74       96.79
          2 |        318        3.18       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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