Frequencies for first 10,000 rows of prov2315 variable in pos1999 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,885       88.85       88.85
          0 |        983        9.83       98.68
          1 |         39        0.39       99.07
          2 |         87        0.87       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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