Frequencies for first 10,000 rows of prov5165 variable in pos1996 dataset :

nurse aides |
  in trng - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,994       99.94       99.94
        .06 |          1        0.01       99.95
        .31 |          1        0.01       99.96
         .5 |          1        0.01       99.97
       1.14 |          1        0.01       99.98
       2.39 |          1        0.01       99.99
       8.93 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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