We present a new Open Science Monitor framework at the country level for the case of France. We propose a fine-grained monitoring of the dynamics of the open access to publications, based on historical data from Unpaywall, and thus limited to Crossref-DOI documents. The economic models of journals publishing French publications are analyéed as well as the open access dynamics by discipline and open access route (publishers and repositories).The French Open Science Monitor (BSO) website: https://frenchopensciencemonitor.esr.gouv.fr presents the results to date (last observation date December 2021). 62% of the 170,000 French 2020 publications are available in December 2021. This rate has increased by 10 points in one year. The level of open a...