ratel | Dgraph Data Visualizer and Cluster Manager | Data Visualization library

I'm using TestContainers to run dgraph.

Here is my test code:

I'm new to Dgraph and am bashing my head against a simple issue with dgraph-js. I've even pored through the github sourcecode but I've clearly missed what I'm looking for.

Within the dgraph-ratel interface I can run this query:

I have a list of data values that I am inserting into a HashMap to be read by the request, and I am inputting that data into a table in my JSP. The issue I'm having here is that I would successfully add the data into the relevant lists, and then add it into the hashmap, but once I clear the lists to retrieve new data for a new year, it also clears the recorded values in the hashmap. How do I stop this from dynamically adjusting my hashmap? Thank you for your time.

Here is my code, although I don't think it's the issue as much as my lack of knowledge.