summing periods

D

dave h

hi

is there a way to sum period amounts for each year without using a pivot
table- data is loan amortisation is any body is interested and uses
functions to create the amount data


data file is periodic 1 st columns periods then data in second column

for example:

periods amount

p1-2004
p2-2004
etc
etc
out to 2025

any help would be groovy!

dave
 
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