Frequencies for first 10,000 rows of pct012c012 variable in sf12010860us22 dataset :

    9 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,392       83.92       83.92
          1 |        983        9.83       93.75
          2 |        313        3.13       96.88
          3 |        130        1.30       98.18
          4 |         60        0.60       98.78
          5 |         37        0.37       99.15
          6 |         24        0.24       99.39
          7 |         14        0.14       99.53
          8 |         13        0.13       99.66
          9 |          5        0.05       99.71
         10 |          3        0.03       99.74
         11 |          4        0.04       99.78
         12 |          4        0.04       99.82
         13 |          2        0.02       99.84
         14 |          1        0.01       99.85
         15 |          1        0.01       99.86
         16 |          1        0.01       99.87
         18 |          1        0.01       99.88
         19 |          1        0.01       99.89
         20 |          1        0.01       99.90
         21 |          1        0.01       99.91
         23 |          1        0.01       99.92
         28 |          1        0.01       99.93
         48 |          1        0.01       99.94
         58 |          2        0.02       99.96
         59 |          1        0.01       99.97
         62 |          1        0.01       99.98
         83 |          1        0.01       99.99
         91 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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