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

  REC: Allocation flag for ECURFS |      Freq.     Percent        Cum.
----------------------------------+-----------------------------------
                      Not imputed |      9,963       99.63       99.63
Statistical imputation (hot deck) |         37        0.37      100.00
----------------------------------+-----------------------------------
                            Total |     10,000      100.00

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