XML Query Nodes - Sequence ID

I have a situation that can be summarized like this :

DECLARE @XML XML = '<X C="0" I="1"><E D="CODE1" A="0" /><E D="CODE2" A="0.03" /><E D="CODE2" A="0.04" /></X>'

SELECT
E.value('@D','varchar(MAX)') AS Code,
E.value('@A','varchar(MAX)') AS Rate
FROM @XML.nodes('./X/E') AS T(E)

The order of appearance is of capital importance as the rates do apply on the previous ones. Is there a way to generate a sequential ID based on the order of appearance in the XML string ? In this case, I want :

1 CODE1 0
2 CODE2 0.03
3 CODE2 0.04

I though of using a temp table with Identity column... But it's not the best way for my need. I have multiple lines each with a XML String. The ROW_NUMBER() windowed function needs a ORDER BY clause that I can't provide.