Frequencies for first 10,000 rows of tfstimes variable in sippp08putm1 dataset :

  REC: Number of separate times |
                     go on food |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                Not in Universe |      9,258       92.58       92.58
 One time on food stamps (SNAP) |        497        4.97       97.55
Two times on food stamps (SNAP) |        191        1.91       99.46
    Three or more times on food |         54        0.54      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016