Frequencies for first 10,000 rows of pct012g171 variable in sf12000860us22 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,260       82.60       82.60
          1 |      1,015       10.15       92.75
          2 |        286        2.86       95.61
          3 |        130        1.30       96.91
          4 |         89        0.89       97.80
          5 |         43        0.43       98.23
          6 |         40        0.40       98.63
          7 |         21        0.21       98.84
          8 |         22        0.22       99.06
          9 |         17        0.17       99.23
         10 |         14        0.14       99.37
         11 |         13        0.13       99.50
         12 |          7        0.07       99.57
         13 |          7        0.07       99.64
         14 |          7        0.07       99.71
         15 |          4        0.04       99.75
         16 |          1        0.01       99.76
         17 |          7        0.07       99.83
         18 |          4        0.04       99.87
         19 |          1        0.01       99.88
         20 |          3        0.03       99.91
         21 |          1        0.01       99.92
         22 |          3        0.03       99.95
         23 |          2        0.02       99.97
         24 |          1        0.01       99.98
         27 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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