Frequencies for first 10,000 rows of wksht_cd variable in snf_alpha2540_96_1998

   wksht_cd |      Freq.     Percent        Cum.
------------+-----------------------------------
    A000000 |      4,880       48.80       48.80
    A81000A |        113        1.13       49.93
    A81000B |        564        5.64       55.57
    A81000C |        540        5.40       60.97
    B100000 |      1,686       16.86       77.83
    E10A180 |        397        3.97       81.80
    H510100 |          3        0.03       81.83
    H510200 |          1        0.01       81.84
    H710000 |          3        0.03       81.87
    S000000 |        143        1.43       83.30
    S200000 |      1,621       16.21       99.51
    S410002 |          1        0.01       99.52
    S700003 |         48        0.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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