1,1% Of Priest Celebrate Old Rite - Biggest Group Was Created By Summorum Pontificum

The French organisation Paix liturgique estimates that between 4,500 and 6,500 Catholic priests worldwide celebrate the Old Latin Mass. This would be 1.1% of the Catholic clergy.

This number includes 760 priests of the Society of St Pius X (SSPX), 730 priests of other traditional communities like the Fraternity of St Peter (FSSPX) and others, as well as 3,000 to 5,000 diocesan or religious priests who celebrate the Tridentine Rite regularly.

The latter group received the permission to say the Old Mass in 2007 through Benedict XVI's Summorum Pontificum.

According to Vatican statistics there were 414.696 Catholic priests worldwide in 2016.

Picture: © Joseph Shaw, CC BY-NC-SA, #newsBhqahvissk
The article fails to explain how this French organization reached such an estimate. I can say with certainty, the figure given for the FSSP's membership is factually incorrect.
The link does not work:

Website unavailable.This site is currently suspended. The site administrator has been informed.
You're absolutely correct and I'm shocked. That is the official website for the Priestly Fraternity of Saint Peter. Checking just now, via Google, the entire website has been suspended which is... baffling. *sigh* Always something online... always something.
Link works now
So 1 percent celebrate the true mass instead of the protestant version. Victory tot he enemies of Christ, it seems.
mm??? I believe it is higher than that. These stats were collected for those parishes where the Indult mass is offered. What about the SSPX, FSSP, CRNJ, St Pius V, et all? Not to mention independent traditional priests who offer the TLM. I believe it is more like 3-5%
There would be more, but they would face a trifecta of bishop, boomer parish Council and denunciation by letter / email from some 'Spirit of V2' parishioner. SP can count for nothing with those elements.