The current statistics from www.postcrossing.com show for March 2021, 480,837 postcards received. Compared to the pre-pandemic year 2019, it is an increase of approx. 5.1% (457,532 in March 2019).
Compared to the COVID-19 year 2020, an increase of 25.3%.
The hobby is becoming more and more popular.
A great development. Happy postcrossing!