There is no separate vocation with that title. We can play statistically with the actual pool and say that the vocation of being a celibate priest who exclusively celebrates the Tridentine Mass is also a growing vocation in the Church. Or that the vocation of being an African celibate priest is a growing vocation, etc., etc.
The reality of the growing number of married converts being ordained is as much or more a function of the continuing apostasy of mainline denominations away from decency and morality as it is a factor of celibacy within the Church.
I didn't make myself clear. I was referring to the permanent diaconate. Granted, it's not exactly like the priesthood, but its growth gives ample evidence that there is no shortage of Catholic men who are willing to serve the Church.
There is, however, a shortage of men who are willing to commit to celibacy as a prerequisite for service.