Frequencies for first 10,000 rows of pct012c007 variable in sf12010860us22 dataset :

    4 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,453       84.53       84.53
          1 |        952        9.52       94.05
          2 |        292        2.92       96.97
          3 |        121        1.21       98.18
          4 |         55        0.55       98.73
          5 |         29        0.29       99.02
          6 |         30        0.30       99.32
          7 |         18        0.18       99.50
          8 |         10        0.10       99.60
          9 |          3        0.03       99.63
         10 |          9        0.09       99.72
         11 |          3        0.03       99.75
         12 |          3        0.03       99.78
         13 |          3        0.03       99.81
         14 |          3        0.03       99.84
         15 |          2        0.02       99.86
         16 |          1        0.01       99.87
         18 |          1        0.01       99.88
         19 |          1        0.01       99.89
         21 |          1        0.01       99.90
         24 |          3        0.03       99.93
         41 |          1        0.01       99.94
         44 |          1        0.01       99.95
         49 |          2        0.02       99.97
         71 |          1        0.01       99.98
         77 |          1        0.01       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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