Frequencies for first 10,000 rows of pct012n004 variable in sf12010880us33 dataset :

     1 year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,851       88.51       88.51
          1 |        706        7.06       95.57
          2 |        225        2.25       97.82
          3 |         90        0.90       98.72
          4 |         46        0.46       99.18
          5 |         34        0.34       99.52
          6 |          8        0.08       99.60
          7 |         10        0.10       99.70
          8 |          7        0.07       99.77
          9 |          4        0.04       99.81
         10 |          1        0.01       99.82
         11 |          3        0.03       99.85
         12 |          1        0.01       99.86
         13 |          2        0.02       99.88
         14 |          2        0.02       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         21 |          2        0.02       99.94
         22 |          1        0.01       99.95
         25 |          1        0.01       99.96
         27 |          1        0.01       99.97
         30 |          1        0.01       99.98
         39 |          1        0.01       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017