Hello @novinosrin.  Thank you for the reply.  Here is the code I used to generate the subset of PROC PRINT shown below.  But what I want is the ihdi value at obs=8 to fill in obs=9 and 10, the last year for ctryno=1.  I also want ihdi=0.311 at obs=21 to fill in obs=22.  Similarly throughout the data file.  Thanks again.   data want; retain country code year ctryno; set have; by ctryno year; retain _ihdi; if first.code then call missing(_ihdi); if not missing(ihdi) then _ihdi=ihdi; else ihdi=_ihdi; drop _ihdi; proc print data=want;               var code ctryno year ihdi hdi;     ... View more