I am only noting that some religious communities are doing better than others in terms of recruitment and retention, though all are resting on the death or lessening of their ranks. But -- as I said above -- there will always be some Christians, albeit a small minority, who will opt to live out "community living," "sharing resources," "celibacy" and "obedience in service" in certain religious communities. So for every 1000 who want to live in or join Catholic lay communities, there will always be a few who prefer the traditional religious community. To "establish" these "facts," all one needs to do is contact -- on one's own -- the above mentioned religious communities and get the number of professions and/or ordinations they have overseen/had in the last 15 years. Professional/ordination classes are much smaller, but professions and ordinations are still happening.