Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_2008

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      4,684       46.84       46.84
    A81000A |         88        0.88       47.72
    A81000B |        203        2.03       49.75
    A81000C |        562        5.62       55.37
    B100000 |      1,122       11.22       66.59
    E10A180 |         39        0.39       66.98
    S000000 |        102        1.02       68.00
    S200000 |      3,200       32.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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