Frequencies for first 10,000 rows of prov2315 variable in pos2006 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |      1,105       11.05       98.15
          1 |         50        0.50       98.65
          2 |        129        1.29       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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