Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_2003

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      4,025       40.25       40.25
    A81000A |         88        0.88       41.13
    A81000B |        645        6.45       47.58
    A81000C |      1,040       10.40       57.98
    B100000 |      1,121       11.21       69.19
    E10A180 |          2        0.02       69.21
    H510100 |          3        0.03       69.24
    S000000 |        112        1.12       70.36
    S200000 |      2,964       29.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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