Frequencies for first 10,000 rows of pct012g037 variable in sf12010860us26 dataset :

   34 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,598       65.98       65.98
          1 |      1,274       12.74       78.72
          2 |        587        5.87       84.59
          3 |        368        3.68       88.27
          4 |        266        2.66       90.93
          5 |        184        1.84       92.77
          6 |        134        1.34       94.11
          7 |        104        1.04       95.15
          8 |         81        0.81       95.96
          9 |         70        0.70       96.66
         10 |         54        0.54       97.20
         11 |         43        0.43       97.63
         12 |         36        0.36       97.99
         13 |         29        0.29       98.28
         14 |         19        0.19       98.47
         15 |         23        0.23       98.70
         16 |         11        0.11       98.81
         17 |         15        0.15       98.96
         18 |         10        0.10       99.06
         19 |         11        0.11       99.17
         20 |          7        0.07       99.24
         21 |         12        0.12       99.36
         22 |         10        0.10       99.46
         23 |          6        0.06       99.52
         24 |         11        0.11       99.63
         25 |          5        0.05       99.68
         26 |          2        0.02       99.70
         27 |          6        0.06       99.76
         28 |          3        0.03       99.79
         29 |          5        0.05       99.84
         30 |          1        0.01       99.85
         31 |          1        0.01       99.86
         32 |          1        0.01       99.87
         33 |          2        0.02       99.89
         34 |          4        0.04       99.93
         38 |          1        0.01       99.94
         40 |          1        0.01       99.95
         42 |          2        0.02       99.97
         44 |          2        0.02       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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