Those crediting TCAS with all these "saves" need to explain why, before the advent of TCAS, there were a statistically-negligible number of collisions in the history of airline flying, and upon the introduction of TCAS there are suddenly almost 60 per year. Even considering the growth of air travel, that is an unbelievable jump.
PBL
You also need to consider the increase in navigational accuracy and altimetry. Events which would previously have been close airproxes due to kit inaccuracy could well now be collisions with everyone within a few metres of the airway centreline and a few feet of their FL.
Even so, still agree with PBL, it is an unbelievable jump