Apply growth rate forwards and backwards

[deleted_user]

I am trying to apply a growth rate forwards and backwards to a dataset which looks like this:

country year growth rate variable x
AUT 1997 1.37474131 .
AUT 1998 3.31918607 .
AUT 1999 2.94737095 .
AUT 2000 3.09521378 1.88E+11
AUT 2001 0.21217698 .
AUT 2002 3.32421857 .
AUT 2003 1.17438372 .

Could anyone give me a hint on how to do it?

Thanks

[ArtC]

I for one need clarification on what the result looks like. Can you show us a before and after example?

[Ksharp]

Hi.
Art C maybe you misunderstand the op's mean.
I think op does not want to process data ,want to Statistical method to process these data.
In my opinion, op need SAS/ETS for the sake of time series data. But I am not familiar.
It looks like that there is far too much things to learn in SAS.Althought spend your whole life ,it also can not learn it over.

Ksharp