From the 2020 Perth Mint annual report, 10.74 million 2020...

From the 2020 Perth Mint annual report,
10.74 million 2020 Silver Kangaroo coins were sold last year - about 900,000 sold each month

https://www.perthmint.com/documents/Annual%20Reports/The%20Perth%20Mint%20Annual%20Report%20FY19-20.pdf

Just browsing the Perth Mint today
They are often very quickly out of stock of the other coins (Wombat, Kookaburra, Koala) due to the smaller mintage quantities



I was a bit surprised to see that they are out of stock of the 2021 Silver Kangaroos.



A little surprisingly there were Silver Rectangle Dragons available which are actually more collectable, so picked up a few tubes of these.