We don't.
Your question is an important one. We often see that, funding-wise, the success rate is higher in some disciplines than in others. In the field of history, for example, we see that more funding applications are submitted in French, compared with other disciplines where none of the applications are in French. There are definitely differences among the disciplines.
That said, we have noticed that the granting councils—for instance, CIHR—have very few reviewers who can review applications in French. Even if they say they are bilingual, when the time comes to review applications and submit them to the committees, we see that the reviewers do not have that ability. Only 26.8% of reviewers are able to review applications in French. This is something that could be improved within the research councils.
In terms of statistics, we don't have a breakdown by language. We are given percentages, but we don't know how to break them down. We don't know what really comes from the Canadian francophonie or from Quebec. We don't have the numbers. Recently, SSHRC released data indicating that success rates are very good for francophones, but we don't know what those rates are. We don't know how SSHRC obtained those results.
We would like to see more ongoing monitoring of the data so that we can determine if there are improvements or not, especially when it comes to the numbers. I can tell you that, in the case of CIHR, I was once the only one to submit an application in French.