Frequencies for first 10,000 rows of prov2315 variable in pos1997 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,792       87.92       87.92
          0 |      1,064       10.64       98.56
          1 |         46        0.46       99.02
          2 |         90        0.90       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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