Frequencies for first 10,000 rows of pct012n136 variable in sf12010860us33 dataset :

   29 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,964       89.64       89.64
          1 |        620        6.20       95.84
          2 |        181        1.81       97.65
          3 |         93        0.93       98.58
          4 |         45        0.45       99.03
          5 |         26        0.26       99.29
          6 |         14        0.14       99.43
          7 |         10        0.10       99.53
          8 |          9        0.09       99.62
          9 |          5        0.05       99.67
         10 |          7        0.07       99.74
         11 |          3        0.03       99.77
         12 |          1        0.01       99.78
         13 |          2        0.02       99.80
         14 |          2        0.02       99.82
         15 |          2        0.02       99.84
         16 |          3        0.03       99.87
         17 |          1        0.01       99.88
         18 |          2        0.02       99.90
         19 |          1        0.01       99.91
         21 |          1        0.01       99.92
         27 |          1        0.01       99.93
         28 |          1        0.01       99.94
         29 |          1        0.01       99.95
         30 |          1        0.01       99.96
         36 |          1        0.01       99.97
         39 |          1        0.01       99.98
         48 |          1        0.01       99.99
         64 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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