Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_2000

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      5,195       51.95       51.95
    A81000A |         89        0.89       52.84
    A81000B |        531        5.31       58.15
    A81000C |        798        7.98       66.13
    B100000 |      1,775       17.75       83.88
    E10A180 |         59        0.59       84.47
    S000000 |        132        1.32       85.79
    S200000 |      1,340       13.40       99.19
    S700003 |         81        0.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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