Frequencies for first 10,000 rows of pct012m004 variable in sf12000860us28 dataset :

     1 year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,828       98.28       98.28
          1 |        158        1.58       99.86
          2 |          9        0.09       99.95
          3 |          3        0.03       99.98
          4 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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