Frequencies for first 10,000 rows of wtgain9 variable in linkco1991us_num dataset :

Weight Gain |
     Recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,562       15.62       15.62
          2 |        667        6.67       22.29
          3 |        511        5.11       27.40
          4 |        554        5.54       32.94
          5 |        310        3.10       36.04
          6 |        301        3.01       39.05
          7 |        130        1.30       40.35
          8 |        225        2.25       42.60
          9 |      5,740       57.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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