Finish NAA closed access data analysis

[wragge]

I created some notebooks for this analysis in January of NAA files closed (and un-closed) in 2020: https://updates.timsherratt.org/2021/01/03/a-long-thread.html

I need to clean them up and share them!

[wragge]

Even though work on NAA harvesting has stopped, I've got 10 years worth of 'closed' data that I'd like to do something with: https://updates.timsherratt.org/2025/02/05/ten-years-of-data-the.html