What is the actual percentage of people exclusively listening to vinyl vs digital?

Haven’t entered the music streaming venue.  
Vinyl, CD’s and recently cassettes have been added to my listening experience.
Vinyl is my evening listening.  The time is dedicated to enjoy music.
During the day CD’s are my main 
source.  Fine sound and the convenience drives these hours.
Recently returned to the cassette  medium.  Purchased a fine player
and pulled my stored cassette collection.  Enjoy the sound as well. 
CD’s - 50 %
Vinyl - 25 %
Cassette  - 25 %
Mike B

According to this article from RIAA (Recording Industry of America Association) https://www.riaa.com/wp-content/uploads/2020/09/Mid-Year-2020-RIAA-Revenue-Statistics.pdf, from the mid-year 2020 statistics, streaming accounts for 85% of sales, 7% physical, 6% digital downloads.

Physical took a 23% hit from the prior year likely due to COVID and
most record stores being closed.

Surprising thing is for the first time since the 80s, vinyl sales
outdid CD sales. The sobering part is, vinyl only accounted for 4% of
total recorded music sales.

Granted, this only answers part of the OP question about who is listening to what format.  But it gives a clue of a general trend no matter what the age of the listener.

Personally, I never gave up vinyl/cassettes from the 80s.  When one listens to a lot of indie music, the release format varies depending on the budget the band has for releasing their music.   Plus, being a 60 something "old fart" means keeping a working turntable and cassette machine alive.

Therefore, my listening breaks down to 50% vinyl, 45% CD and 5% cassette.  I do not partake in streaming.  Not a lot of what I listen to is available on any of the streaming services.

I only use wood for heat and power and I don’t have indoor plumbing at all. Not bad, eh? ;-)

@hilde45

I use 45 tubes for heating (and those Globe RCA made nearly 100 years ago), my First Watt F2J solid state amp is also very hot which is very nice during the cold winter :)

Here is my system. Now please tell me why do I need digital or stupid TV between the speakers? Digital is on my iPhone to discover music and to buy what I like on original vinyl, very simple.

I also can play digital from my iPhone via bluetooth anytime I want to share new discoveries when I visit friends (which is great).

But I want my music on vinyl and digital in whatever quality can’t replace original vinyl (or a habit to buy vintage vinyl every month). I have massive collection of rare records (45s and LPs).

Digital is nothing, everyone can copy many terabytes of music immediately from hard drive, it’s free. If this is what you want then go digital.

Record collecting is something else.

MC
You can not be equivocal about zero.
One lone fanatic out of an infinite sample size IS NOT absolute zero %.

How did this idiotic question turn into blather about preferences?  Every person is entitled to like whatever they do, faulty reasoning aside.

I have been on a forced vinyl holiday going on 4 months now. I ordered a new turntable directly from the manufacturer, sold the old one and to have Covid hysteria slow turntable production down to a crawl. I have been listening to a hard drive and the few assorted discs, maybe three hundred I have left. There are almost 4000 albums on the hard drive so it is not like I am starved for music. But, I am starting to develop withdrawal symptoms. Looking back I do not think I have gone this long without playing a record since I got my first record player in 1958 for my 4th birthday. 
I just want to play a record. I do not think it is because of any sonic difference either, more like the intractability of old habits. 
This argument over formats is getting rather old. The digital formats are unquestionably more accurate by any and all measurable parameters, playing records a measurable disaster. What can't be measured is what they sound like. Beauty is in the eye of the beholder. This is why I personally do not care what people think anything sounds like. Unless you know the person and their tastes very well there is no way to control for it. 
So, what we have is an argument over what color is best in an unknown décor. Seems sort of silly doesn't it?