Frequencies for first 10,000 rows of pct012o009 variable in sf12000860us30 dataset :

    6 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,181       61.81       61.81
          1 |      1,416       14.16       75.97
          2 |        696        6.96       82.93
          3 |        446        4.46       87.39
          4 |        272        2.72       90.11
          5 |        249        2.49       92.60
          6 |        137        1.37       93.97
          7 |        130        1.30       95.27
          8 |         84        0.84       96.11
          9 |         56        0.56       96.67
         10 |         64        0.64       97.31
         11 |         58        0.58       97.89
         12 |         38        0.38       98.27
         13 |         26        0.26       98.53
         14 |         19        0.19       98.72
         15 |         24        0.24       98.96
         16 |         16        0.16       99.12
         17 |         12        0.12       99.24
         18 |         10        0.10       99.34
         19 |         14        0.14       99.48
         20 |          6        0.06       99.54
         21 |         14        0.14       99.68
         22 |          3        0.03       99.71
         23 |          3        0.03       99.74
         24 |          2        0.02       99.76
         25 |          2        0.02       99.78
         26 |          5        0.05       99.83
         27 |          2        0.02       99.85
         28 |          4        0.04       99.89
         29 |          2        0.02       99.91
         30 |          2        0.02       99.93
         32 |          1        0.01       99.94
         33 |          1        0.01       99.95
         37 |          1        0.01       99.96
         39 |          1        0.01       99.97
         44 |          1        0.01       99.98
         49 |          1        0.01       99.99
         73 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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