France delivered 50% of their nuclear cores (the 900MW model) between 1980 and 1985. It isn’t very good because they will all EOL at the same time. I hope Nixon’s plan would have been to streamline and spread their production, which then becomes extremely efficient, a bit like our P’4 in this graph:

https://commons.wikimedia.org/wiki/File:Chrono-parc-nucleair...