NameSilo (an advertiser here) released September marketplace stats, October are not yet out.
Marketplace Stats September 2020
AVERAGE AGE OF SOLD DOMAIN 5.3 years
AVERAGE DAYS TO SELL A DOMAIN 171
OLDEST DOMAIN SOLD 24 years old
$348 was the average transaction size
TOP BUYING COUNTRIES
United States34.96%
Canada28.78%
Czechia7.04%
Great Britain5.8%
Italy3.71%
Australia3.45%
France2.68%
Russia1.96%
Denmark1.6%
UAE1.39%
9 CHARACTER DOMAIN NAMES SAW THE HIGHEST VOLUME OF SALES OUT OF ALL LENGTHS
Highest sale $18,850
Check out the graphic on NameSilo blog