Complicated case on Exchange / Conversion Rate...

[ConfusedIndian]

Hello all,

I am applying for Tier-1 (General) within the UK.
Mine's a slightly complicated case in the previous earnings section.

I have worked in 3 countries in the last 1 year and have to provide the bank statements from 3 different bank accounts for the last 12 months.

I have received a constant Indian salary + allowances when I was in the US and the UK.

The details are as follows:
Dec-07 to Jan-08 : US
Feb-08 to Aug-08 : India
Sep-08 to Nov-08 : UK

Now my question is:

What is the exchange/conversion rate I should apply, for the salaries I received in India?
ie. should I use the 31-Jan-08 OANDA rate for the period I was in the US; 31-Aug-08 OANDA rate for for the period I was in India(and uplift); 30-Nov-08 OANDA rate for the for the period I was in the UK?

OR

Should I use the 30-Nov-08 OANDA rate for the entire Indian salary, since I am submitting the application on 03-Dec-08?


Thank you for all your help and advice.
ConfusedIndian