The monthly growth of the number of pages you need to get an AllStar bonus seems to have stopped. Compared to the August numbers, the requirements for an AllStar bonus remained approximately the same in September. There could be two reasons: Either the growth of KindleUnlimited user numbers has stopped – or the fonds is shared between more books.
To get a 250 Euro book bonus, you needed around 315,000 pages. Amazon paid 500 Euro for at least 560,000 pages. The 750 Euro area starts at around 2 Million pages.
Author bonuses this time start at around 290,000 pages (500 Euro). They grow to 1500 Euro for at least 440,000 pages. From 850,000 pages you would get 2500 Euro, while 1.272 Million pages would get you 3500 Euro. To get 5000 Euro, your readers must have consumed around 1,8 Million pages. Finally, for 7500 Euro the required number of pages read should be at around 2.6 Million.