With a modern Excel version you may enter the formula below in C18 and it will spill it's results all the way down.
=XLOOKUP(B18:B92,E5:E15,D5:D15,"")
In an older Excel version use this in C18 and copy down.
=IFERROR(INDEX($D$5:$D$15,MATCH(B18,$E$5:$E$15,0)),"")