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

        REC: Ever applied for SSI |
                  allocation flag |      Freq.     Percent        Cum.
----------------------------------+-----------------------------------
                      Not imputed |      9,764       97.64       97.64
Statistical imputation (hot deck) |        236        2.36      100.00
----------------------------------+-----------------------------------
                            Total |     10,000      100.00

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