Frequencies for first 10,000 rows of prov5675 variable in pos2010 dataset :

 SRV: BLOOD |
       BANK |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |        429        4.29       90.55
          1 |        559        5.59       96.14
          2 |        311        3.11       99.25
          3 |         75        0.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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