Frequencies for first 10,000 rows of clmn_num variable in snf_alpha2540_96_1996

   clmn_num |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      5,326       53.26       53.26
       0100 |      1,283       12.83       66.09
       0101 |          3        0.03       66.12
       0104 |          1        0.01       66.13
       0150 |          1        0.01       66.14
       0200 |        633        6.33       72.47
       0201 |          1        0.01       72.48
       0250 |          1        0.01       72.49
       0300 |        838        8.38       80.87
       0400 |        278        2.78       83.65
       0401 |         10        0.10       83.75
       0402 |          8        0.08       83.83
       0500 |        267        2.67       86.50
       0600 |        303        3.03       89.53
       0700 |        133        1.33       90.86
       0800 |        133        1.33       92.19
       0801 |         12        0.12       92.31
       0850 |          1        0.01       92.32
       0900 |        129        1.29       93.61
       1000 |        123        1.23       94.84
       1100 |        123        1.23       96.07
       1200 |        126        1.26       97.33
       1300 |        133        1.33       98.66
       1350 |         32        0.32       98.98
       1400 |        102        1.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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