[tlhIngan Hol] Number of speakers

Many many years ago, Lawrence gave an interview and mentione dthere were about "30-40 fluent speakers". This is quoted everywehere in the web, also in Arika Okrants book. That interview is quite old, and the number of speakers has with no doubt increased. But Wikipedia is no asking for a citation. As of today, I would guess there are about 100 people who speak Klingon fluently, but my number is based on experience, not statistics. So, in which way could we get a good number of fluent speakers? (PS: no need to discuss what "fluent" really means. There are no native level speakers.) -- Lieven L. Litaer aka the "Klingon Teacher from Germany" https://tlhInganHol.com https://klingon.wiki/En/AliceInWonderland