ASIC Cost Calculator by Year (Google Sheet w/Chart)

I created an excel spreadsheet based on a GPU mining calculator I had that used TDP, power costs, and hash rates to get costs. I've updated this for the ASICs from GAW, Zoom, and Zeus. I'd love to get feedback.

Link is here: https://docs.google.com/spreadsheets/d/18Y47aeGFZtY83kIhIRMOxhi6_2M2qvLzAgVdq4isJPs/edit?usp=sharing

edit: Included current difficulty and doge>usd conversion, also yearly ROI.

Edit #2: Dynamic current difficulty from Dogecoin blockchain, and Prelude.io Doge>USD conversion via API.

Edit #3: u/thepinkanator95 and I have joined forces to make this happen. Feel free to download or copy it to your own GoogleDocs sheet. I want to add GPUs for those people that want to compare.