Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_2011

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      4,024       40.24       40.24
    A81000A |         85        0.85       41.09
    A81000B |        343        3.43       44.52
    A81000C |        770        7.70       52.22
    B100000 |      1,057       10.57       62.79
    E10A180 |         18        0.18       62.97
    G300000 |         72        0.72       63.69
    S000000 |         97        0.97       64.66
    S200000 |      3,534       35.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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