I did a search on Google using the text "what percentage of migrant boats do the french stop, year by year". Reading the results, the French stopped 61-65% in the last few months, and as low as 40% previous to that. It does seem that the previous deal put in place by Tories did not ask anyone to track the number of attempted crossings, but the data seems to indicate that the French stopped around 5000 attempts since 2019. Of course I want 100% of illegal immigrants stopped, but I thought the French were doing a much worse job than that, so I'm glad I took a look.