Finding unique number of Litecoin addresses over time

We are doing academic research on litecoin. We struggle to find the total number of unique Litecoin-addresses used in the network over time.

Is there a way to find this, or a source which have this data available?

For example, for Ethererum, this is easily available from:

You could extract this information from the block chain if you replay all transactions from Block 0 to present, probably something you can do in Python but I haven’t look into it. I’d be willing to help for 5 LTC if you need a programmer.

I thought some more about this because it seems challenging, I did find this article about parsing the blockchain which is likely how I would go about it:

And the project on Github:

I’m surprised a list is not maintained somewhere…