Frequencies for first 10,000 rows of pct012n152 variable in sf12010860us33 dataset :

   45 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,068       90.68       90.68
          1 |        622        6.22       96.90
          2 |        154        1.54       98.44
          3 |         52        0.52       98.96
          4 |         30        0.30       99.26
          5 |         13        0.13       99.39
          6 |         17        0.17       99.56
          7 |          7        0.07       99.63
          8 |          7        0.07       99.70
          9 |          4        0.04       99.74
         10 |          1        0.01       99.75
         11 |          4        0.04       99.79
         12 |          2        0.02       99.81
         13 |          1        0.01       99.82
         14 |          2        0.02       99.84
         15 |          2        0.02       99.86
         16 |          2        0.02       99.88
         17 |          1        0.01       99.89
         19 |          1        0.01       99.90
         20 |          1        0.01       99.91
         21 |          1        0.01       99.92
         22 |          2        0.02       99.94
         23 |          1        0.01       99.95
         25 |          1        0.01       99.96
         26 |          1        0.01       99.97
         40 |          1        0.01       99.98
         41 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017