Frequencies for first 10,000 rows of pct012n058 variable in sf12000860us29 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,588       95.88       95.88
          1 |        312        3.12       99.00
          2 |         53        0.53       99.53
          3 |         24        0.24       99.77
          4 |          8        0.08       99.85
          5 |          5        0.05       99.90
          6 |          3        0.03       99.93
          7 |          1        0.01       99.94
          8 |          1        0.01       99.95
         11 |          1        0.01       99.96
         12 |          3        0.03       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017