Frequencies for first 10,000 rows of pct012g160 variable in sf12000860us22 dataset :

   53 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,318       73.18       73.18
          1 |      1,319       13.19       86.37
          2 |        479        4.79       91.16
          3 |        307        3.07       94.23
          4 |        146        1.46       95.69
          5 |        100        1.00       96.69
          6 |         63        0.63       97.32
          7 |         41        0.41       97.73
          8 |         39        0.39       98.12
          9 |         25        0.25       98.37
         10 |         26        0.26       98.63
         11 |         22        0.22       98.85
         12 |         13        0.13       98.98
         13 |          5        0.05       99.03
         14 |         10        0.10       99.13
         15 |         10        0.10       99.23
         16 |          9        0.09       99.32
         17 |          5        0.05       99.37
         18 |          9        0.09       99.46
         19 |         10        0.10       99.56
         20 |          4        0.04       99.60
         21 |          7        0.07       99.67
         22 |          3        0.03       99.70
         23 |          1        0.01       99.71
         24 |          5        0.05       99.76
         25 |          4        0.04       99.80
         26 |          4        0.04       99.84
         27 |          3        0.03       99.87
         28 |          1        0.01       99.88
         29 |          7        0.07       99.95
         30 |          1        0.01       99.96
         36 |          1        0.01       99.97
         38 |          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 , 17 Apr 2017