Frequencies for first 10,000 rows of pct012g129 variable in sf12000860us22 dataset :

   22 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,893       68.93       68.93
          1 |      1,132       11.32       80.25
          2 |        505        5.05       85.30
          3 |        297        2.97       88.27
          4 |        224        2.24       90.51
          5 |        156        1.56       92.07
          6 |        100        1.00       93.07
          7 |         92        0.92       93.99
          8 |         86        0.86       94.85
          9 |         68        0.68       95.53
         10 |         41        0.41       95.94
         11 |         43        0.43       96.37
         12 |         48        0.48       96.85
         13 |         30        0.30       97.15
         14 |         30        0.30       97.45
         15 |         30        0.30       97.75
         16 |         22        0.22       97.97
         17 |         20        0.20       98.17
         18 |         25        0.25       98.42
         19 |         13        0.13       98.55
         20 |         11        0.11       98.66
         21 |         17        0.17       98.83
         22 |         10        0.10       98.93
         23 |         11        0.11       99.04
         24 |          7        0.07       99.11
         25 |          5        0.05       99.16
         26 |          6        0.06       99.22
         27 |          5        0.05       99.27
         28 |          1        0.01       99.28
         29 |          6        0.06       99.34
         30 |          6        0.06       99.40
         31 |          4        0.04       99.44
         32 |          3        0.03       99.47
         33 |          4        0.04       99.51
         34 |          3        0.03       99.54
         35 |          4        0.04       99.58
         36 |          4        0.04       99.62
         37 |          4        0.04       99.66
         38 |          2        0.02       99.68
         39 |          5        0.05       99.73
         41 |          2        0.02       99.75
         42 |          4        0.04       99.79
         43 |          3        0.03       99.82
         44 |          1        0.01       99.83
         45 |          2        0.02       99.85
         46 |          2        0.02       99.87
         48 |          1        0.01       99.88
         49 |          2        0.02       99.90
         51 |          2        0.02       99.92
         52 |          1        0.01       99.93
         54 |          2        0.02       99.95
         55 |          1        0.01       99.96
         58 |          1        0.01       99.97
         59 |          1        0.01       99.98
         63 |          1        0.01       99.99
         68 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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