Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_10_2015

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      2,061       20.61       20.61
    A6000A0 |         70        0.70       21.31
    A6000B0 |         16        0.16       21.47
    A6000C0 |         12        0.12       21.59
    A6000D0 |         10        0.10       21.69
    A6000E0 |          2        0.02       21.71
    A6000F0 |          2        0.02       21.73
    A6000G0 |         22        0.22       21.95
    A800000 |        531        5.31       27.26
    A810001 |        303        3.03       30.29
    A810002 |        348        3.48       33.77
    B10000* |      3,148       31.48       65.25
    B100000 |         40        0.40       65.65
    E00A181 |          1        0.01       65.66
    E10A180 |         83        0.83       66.49
    G000000 |          1        0.01       66.50
    G100000 |         17        0.17       66.67
    G200001 |          1        0.01       66.68
    G200002 |          9        0.09       66.77
    G300000 |         23        0.23       67.00
    S000001 |        376        3.76       70.76
    S200001 |      1,636       16.36       87.12
    S200002 |      1,073       10.73       97.85
    S300004 |         14        0.14       97.99
    S700000 |        201        2.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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