Frequencies for first 10,000 rows of prov2080 variable in pos1996 dataset :

 srv: blood |
       bank |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,803       88.03       88.03
          0 |        293        2.93       90.96
          1 |        557        5.57       96.53
          2 |        307        3.07       99.60
          3 |         40        0.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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