Good question @barton26.
Although the individual stats were not available anymore, the team stats could still be downloaded from the WCG website and as such I have included them in the overall chart.
Looking at the WCG computational performance chart for the last 30 days, you will notice a decline of 0.006 PFLOPS. If you compare this with the overall Gridcoin decline of 2.27 PFLOPS from 23-june to 9-july, WCG didn't really have an impact.
Oh, I didn't realize they left the team stats up during the GDPR fiasco. That's really interesting to see how little Gridcoin's WCG participation dropped. Pretty surprising honestly.
Here is the chart from 1st of April, before it all started, where you can see that the GDPR decline is substantial in its own right but if you compare the WCG FLOPS with projects like Einstein@home and Collatz Conjecture, it is 'just' a small contributor for team Gridcoin.