Open Access Trends in Scholarly Publishing 2015–2024 - pulse49.com

"While the share of Gold OA within total Open Access output increased by 14 percentage points between 2015 and 2024, the share of Hybrid OA rose by 8 percentage points over the same period. Bronze OA saw a 5-point increase between 2015 and 2023, but returned to its 2015 baseline in 2024. The proportion of Green OA remained relatively stable throughout the years, yet dropped below the 2015 level in 2024—a decline likely attributable to the common practice of delayed Open Access following embargo periods, suggesting a temporal lag in the data. Diamond OA grew by 3 percentage points from 2015 to 2024...."