Here we have some of the GPG analysis over a 3 year sim. Please note it's a small sample size, and for references columns 23/24, 22/23, 21/22 for real life data this is then respectively matched against season 1, 2 and 3 respectively on the save. As you can see, the GPG difference is quite high in some countries and other leagues very near or even less. I was going into this expecting ALL to be higher than average.
I also did an incredibly tiny test with the QME.
All leagues were ran on full detail, apart from of course L1 for the QME test.