The Couperin consortium collects data on APC expenditures from universities and other research institutions in France. A first batch of data has now been kindly made available to OpenAPC, more is to follow soon.
The initial data set provided by Couperin covers publication fees for 695 articles published in 2015. Total expenditure amounts to 1 173 258€ and the average fee is 1 688€.
Note: Convert Euros to USD
1 Euro = $1.18 (June 8, 2019)