Frequencies for first 10,000 rows of prov2315 variable in pos2001 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,837       88.37       88.37
          0 |      1,021       10.21       98.58
          1 |         38        0.38       98.96
          2 |         97        0.97       99.93
          3 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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