Frequencies for first 10,000 rows of prov2060 variable in pos1991 dataset :

       srv: |
administrat |
ion/storage |
      blood |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,084       70.84       70.84
          0 |      2,125       21.25       92.09
          1 |         98        0.98       93.07
          2 |        241        2.41       95.48
          3 |        190        1.90       97.38
          4 |         56        0.56       97.94
          5 |        157        1.57       99.51
          6 |          4        0.04       99.55
          7 |         45        0.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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