Frequencies for first 10,000 rows of pct012o043 variable in sf12000860us30 dataset :

   40 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,107       71.07       71.07
          1 |      1,346       13.46       84.53
          2 |        552        5.52       90.05
          3 |        284        2.84       92.89
          4 |        164        1.64       94.53
          5 |        122        1.22       95.75
          6 |         73        0.73       96.48
          7 |         66        0.66       97.14
          8 |         51        0.51       97.65
          9 |         43        0.43       98.08
         10 |         26        0.26       98.34
         11 |         22        0.22       98.56
         12 |         18        0.18       98.74
         13 |         19        0.19       98.93
         14 |         10        0.10       99.03
         15 |         17        0.17       99.20
         16 |          6        0.06       99.26
         17 |          9        0.09       99.35
         18 |          5        0.05       99.40
         19 |          4        0.04       99.44
         20 |          7        0.07       99.51
         21 |          4        0.04       99.55
         22 |          5        0.05       99.60
         23 |          2        0.02       99.62
         24 |          2        0.02       99.64
         25 |          5        0.05       99.69
         26 |          6        0.06       99.75
         27 |          2        0.02       99.77
         28 |          3        0.03       99.80
         29 |          1        0.01       99.81
         30 |          1        0.01       99.82
         31 |          3        0.03       99.85
         32 |          1        0.01       99.86
         33 |          1        0.01       99.87
         34 |          1        0.01       99.88
         35 |          1        0.01       99.89
         39 |          1        0.01       99.90
         41 |          1        0.01       99.91
         43 |          1        0.01       99.92
         45 |          2        0.02       99.94
         48 |          3        0.03       99.97
         53 |          1        0.01       99.98
         66 |          1        0.01       99.99
        115 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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