Frequencies for first 10,000 rows of pct012n141 variable in sf12000860us29 dataset :

   34 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,211       92.11       92.11
          1 |        495        4.95       97.06
          2 |        146        1.46       98.52
          3 |         55        0.55       99.07
          4 |         29        0.29       99.36
          5 |         18        0.18       99.54
          6 |          9        0.09       99.63
          7 |          4        0.04       99.67
          8 |          9        0.09       99.76
          9 |          4        0.04       99.80
         10 |          2        0.02       99.82
         11 |          3        0.03       99.85
         13 |          2        0.02       99.87
         14 |          2        0.02       99.89
         15 |          1        0.01       99.90
         16 |          2        0.02       99.92
         17 |          1        0.01       99.93
         18 |          2        0.02       99.95
         21 |          2        0.02       99.97
         26 |          1        0.01       99.98
         39 |          1        0.01       99.99
         41 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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