Frequencies for first 10,000 rows of clmn_num variable in snf_alpha2540_96_2008

   clmn_num |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      4,696       46.96       46.96
       0100 |      2,503       25.03       71.99
       0200 |        874        8.74       80.73
       0201 |         81        0.81       81.54
       0300 |        584        5.84       87.38
       0400 |        226        2.26       89.64
       0500 |        173        1.73       91.37
       0600 |        245        2.45       93.82
       0700 |         86        0.86       94.68
       0800 |         86        0.86       95.54
       0801 |          2        0.02       95.56
       0900 |         82        0.82       96.38
       1000 |         73        0.73       97.11
       1100 |         53        0.53       97.64
       1200 |         84        0.84       98.48
       1201 |          1        0.01       98.49
       1300 |         85        0.85       99.34
       1400 |          5        0.05       99.39
       1500 |         61        0.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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