The only reference I've heard of regarding condom size is that it depends on where they were going to be sold if it was sub Saharan Africa, they had more girth, but SE Asia were slightly longer but thinner, when compared to "standard" UK condoms.
Another old joke, set in the Cold War - as a propaganda move, the USSR ordered 200 million condoms sized 14 inch long by 6 inch diameter Condoms from a US supplier, as a counter propaganda move, the US sent them in boxes marked "medium" 😂