Frequencies for first 10,000 rows of prov2315 variable in pos1992 dataset :

 srv: organ |
 transplant |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,851       88.51       88.51
          0 |      1,024       10.24       98.75
          1 |         40        0.40       99.15
          2 |         77        0.77       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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