Frequencies for first 10,000 rows of pct012n130 variable in sf12010860us33 dataset :

   23 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,955       89.55       89.55
          1 |        620        6.20       95.75
          2 |        201        2.01       97.76
          3 |         95        0.95       98.71
          4 |         44        0.44       99.15
          5 |         23        0.23       99.38
          6 |         15        0.15       99.53
          7 |          6        0.06       99.59
          8 |          8        0.08       99.67
          9 |          7        0.07       99.74
         10 |          5        0.05       99.79
         11 |          2        0.02       99.81
         12 |          1        0.01       99.82
         13 |          1        0.01       99.83
         14 |          1        0.01       99.84
         15 |          2        0.02       99.86
         16 |          1        0.01       99.87
         17 |          1        0.01       99.88
         18 |          2        0.02       99.90
         19 |          1        0.01       99.91
         21 |          1        0.01       99.92
         22 |          1        0.01       99.93
         28 |          2        0.02       99.95
         32 |          1        0.01       99.96
         35 |          1        0.01       99.97
         39 |          1        0.01       99.98
         45 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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