Frequencies for first 10,000 rows of pct012n019 variable in sf12000860us29 dataset :

   16 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,015       90.15       90.15
          1 |        690        6.90       97.05
          2 |        161        1.61       98.66
          3 |         58        0.58       99.24
          4 |         26        0.26       99.50
          5 |         13        0.13       99.63
          6 |         10        0.10       99.73
          7 |          8        0.08       99.81
          8 |          3        0.03       99.84
          9 |          1        0.01       99.85
         10 |          2        0.02       99.87
         12 |          1        0.01       99.88
         13 |          1        0.01       99.89
         15 |          1        0.01       99.90
         16 |          1        0.01       99.91
         17 |          1        0.01       99.92
         23 |          3        0.03       99.95
         30 |          1        0.01       99.96
         31 |          1        0.01       99.97
         35 |          1        0.01       99.98
         47 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017