That is a difficult question to answer. No sort of census has ever been taken. However in a 2003 article in The Hindu, Sahaja Yoga was described as being present in over 100 countries.
Some sports writer claimed he had an odd walk- like a practitioner of Yoga- which is called a Yogi. maybe his philosophical comments played a role too, Hang loose!
He picked up his famous nickname from a friend, Bobby Hofman, who said he resembled a Hindu holy man (yogi) they had seen in a movie, whenever Berra sat around with arms and legs crossed waiting to...