Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_10_2016

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      1,934       19.34       19.34
    A6000A0 |         62        0.62       19.96
    A6000B0 |         50        0.50       20.46
    A6000C0 |         36        0.36       20.82
    A6000D0 |         18        0.18       21.00
    A6000E0 |          4        0.04       21.04
    A800000 |        830        8.30       29.34
    A810001 |        188        1.88       31.22
    A810002 |        249        2.49       33.71
    B10000* |      3,052       30.52       64.23
    B100000 |         39        0.39       64.62
    E00A181 |         24        0.24       64.86
    E00A192 |          4        0.04       64.90
    E00B192 |          1        0.01       64.91
    E10A180 |         89        0.89       65.80
    G000000 |         15        0.15       65.95
    G100000 |         15        0.15       66.10
    G200001 |         12        0.12       66.22
    G200002 |         24        0.24       66.46
    G300000 |         44        0.44       66.90
    S000001 |        422        4.22       71.12
    S200001 |      1,602       16.02       87.14
    S200002 |      1,054       10.54       97.68
    S300004 |         29        0.29       97.97
    S700000 |        203        2.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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