Frequencies for d_1_c3_30 variable in snf_rollup2540_96_2011 dataset :

  d_1_c3_30 |      Freq.     Percent        Cum.
------------+-----------------------------------
         90 |          1        0.06        0.06
        281 |          1        0.06        0.11
        360 |          1        0.06        0.17
        400 |          1        0.06        0.22
        610 |          1        0.06        0.28
        630 |          1        0.06        0.33
        870 |          1        0.06        0.39
        923 |          1        0.06        0.44
       1050 |          1        0.06        0.50
       1057 |          1        0.06        0.55
       1080 |          1        0.06        0.61
       1094 |          1        0.06        0.66
       1330 |          1        0.06        0.72
       1602 |          1        0.06        0.77
       1740 |          1        0.06        0.83
       1803 |          1        0.06        0.88
       1980 |          1        0.06        0.94
       2010 |          1        0.06        1.00
       2087 |          1        0.06        1.05
       2160 |          1        0.06        1.11
       2232 |          1        0.06        1.16
       2306 |          1        0.06        1.22
       2812 |          1        0.06        1.27
       2850 |          1        0.06        1.33
          . |      1,785       98.67      100.00
------------+-----------------------------------
      Total |      1,809      100.00

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