Frequencies for first 10,000 rows of pct012n169 variable in sf12010880us33 dataset :

   62 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,610       96.10       96.10
          1 |        280        2.80       98.90
          2 |         57        0.57       99.47
          3 |         19        0.19       99.66
          4 |         10        0.10       99.76
          5 |          5        0.05       99.81
          6 |          3        0.03       99.84
          7 |          5        0.05       99.89
          8 |          3        0.03       99.92
          9 |          1        0.01       99.93
         13 |          2        0.02       99.95
         15 |          3        0.03       99.98
         18 |          1        0.01       99.99
         23 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017