Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_10_2014

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      1,752       17.52       17.52
    A6000A0 |         50        0.50       18.02
    A6000B0 |         32        0.32       18.34
    A6000C0 |         16        0.16       18.50
    A6000D0 |          8        0.08       18.58
    A6000E0 |          4        0.04       18.62
    A6000F0 |          2        0.02       18.64
    A6000G0 |          2        0.02       18.66
    A800000 |        713        7.13       25.79
    A810001 |        401        4.01       29.80
    A810002 |        969        9.69       39.49
    B10000* |      2,809       28.09       67.58
    B100000 |         36        0.36       67.94
    E00A181 |          1        0.01       67.95
    E10A180 |         78        0.78       68.73
    G000000 |          3        0.03       68.76
    G100000 |         43        0.43       69.19
    G200001 |          3        0.03       69.22
    G200002 |          5        0.05       69.27
    G300000 |         45        0.45       69.72
    S000001 |        348        3.48       73.20
    S200001 |      1,510       15.10       88.30
    S200002 |        965        9.65       97.95
    S300004 |         25        0.25       98.20
    S700000 |        180        1.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2018