Here is an updated version with data collected for the full week, 6/11-6/17.
One thing to note:
When I collect and view the data for a single day, from a single world, there is a very noticeable clustering of the rewards. On the data collection sheets, I have the 5 goods broken out separately, each with a 1/14 chance. There are days I won't get a single reward for one of the goods, while other days one of the goods is rewarded more than the other 4 combined.
As I do my collections and record the results, the clustering has me convinced that something must be off. But once several days of data is aggregated, the clustering largely disappears. I suspect once a few thousand data points are collected, there will be little difference between the expected and actual results.