Frequencies for first 10,000 rows of pct012m003 variable in sf12010860us32 dataset :

    Under 1 |
       year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,825       98.25       98.25
          1 |        146        1.46       99.71
          2 |         20        0.20       99.91
          3 |          3        0.03       99.94
          4 |          4        0.04       99.98
          5 |          1        0.01       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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