Frequencies for first 10,000 rows of clmn_num variable in snf_alpha2540_96_2011

   clmn_num |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      4,106       41.06       41.06
       0100 |      2,622       26.22       67.28
       0101 |          2        0.02       67.30
       0200 |      1,060       10.60       77.90
       0201 |         84        0.84       78.74
       0300 |        799        7.99       86.73
       0400 |        285        2.85       89.58
       0500 |        169        1.69       91.27
       0600 |        302        3.02       94.29
       0700 |         85        0.85       95.14
       0800 |         85        0.85       95.99
       0801 |          2        0.02       96.01
       0900 |         81        0.81       96.82
       0901 |          2        0.02       96.84
       1000 |         54        0.54       97.38
       1100 |         30        0.30       97.68
       1200 |         74        0.74       98.42
       1201 |          1        0.01       98.43
       1300 |         85        0.85       99.28
       1301 |          5        0.05       99.33
       1400 |         15        0.15       99.48
       1500 |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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