Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_1997

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      5,037       50.37       50.37
    A81000A |        100        1.00       51.37
    A81000B |        523        5.23       56.60
    A81000C |        628        6.28       62.88
    B100000 |      1,738       17.38       80.26
    E10A180 |        351        3.51       83.77
    S000000 |        134        1.34       85.11
    S200000 |      1,489       14.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018