Frequencies for first 10,000 rows of econds_8 variable in mort1975 dataset :

   econds_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,836       98.36       98.36
         01 |         19        0.19       98.55
         02 |         34        0.34       98.89
         03 |         39        0.39       99.28
         04 |         35        0.35       99.63
         05 |         29        0.29       99.92
         06 |          6        0.06       99.98
         08 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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