I am searching for traded volume data for natural gas commodity for a period of last 10 years using Python API. I am in interested in natural gas prices and volume data for Germany and so I tested using this simple code but it gives NA for all values of volume. Is there some problem in the code that I am writing? (Screenshot is attached)
Secondly, does this "Close" value represents the "closing spot price" of the contract?
Screenshot 2021-10-20 080551.png