Frequencies for first 10,000 rows of pct012m141 variable in sf12010860us32 dataset :

   34 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,750       97.50       97.50
          1 |        222        2.22       99.72
          2 |         23        0.23       99.95
          3 |          3        0.03       99.98
          4 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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