Finance report dynamic month wise report

Hi Frds,

I have a input screen from to period. but i dont have periods in the retreiving database table (  FAGLFLEXT ) .

But i have fields as below 01 1st month till 16th month .

               tsl01 TYPE faglflext-tsl01, " Month1

               tsl02 TYPE faglflext-tsl02, " Month2

               tsl03 TYPE faglflext-tsl03, " Month3

               tsl04 TYPE faglflext-tsl04, " Month4

               tsl05 TYPE faglflext-tsl05, " Month5

               tsl06 TYPE faglflext-tsl06, " Month6

               tsl07 TYPE faglflext-tsl07, " Month7

               tsl08 TYPE faglflext-tsl08, " Month8

               tsl09 TYPE faglflext-tsl09, " Month9

               tsl10 TYPE faglflext-tsl10, " Month10

               tsl11 TYPE faglflext-tsl11, " Month11

               tsl12 TYPE faglflext-tsl12, " Month12

               tsl13 TYPE faglflext-tsl13, " Month13

               tsl14 TYPE faglflext-tsl14, " Month14

               tsl15 TYPE faglflext-tsl15, " Month15

               tsl16 TYPE faglflext-tsl16, " Month16

now i want to add the months value based on user giving in the selection screen pls throw light these requirement.

Regards,

kabil.G