Frequencies for first 10,000 rows of pct012m110 variable in sf12000860us28 dataset :

    3 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,850       98.50       98.50
          1 |        140        1.40       99.90
          2 |          9        0.09       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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