Frequencies for first 10,000 rows of entity11 variable in mort1975 dataset :

   entity11 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,993       99.93       99.93
   40659900 |          1        0.01       99.94
   50179600 |          1        0.01       99.95
   50344090 |          1        0.01       99.96
   503514 0 |          1        0.01       99.97
   50468210 |          1        0.01       99.98
   505323 0 |          1        0.01       99.99
   50844090 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015