Frequencies for first 10,000 rows of prov2315 variable in pos2002 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,812       88.12       88.12
          0 |      1,038       10.38       98.50
          1 |         40        0.40       98.90
          2 |        104        1.04       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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