Trading has always been something that people viewed as difficult, at least that's what I thought when I started, but I like the fact that I see a lot more people doing both now.
I don't have a specific number but in the little things you can have an idea of how much more people are into trading now. I remember seeing the post about the amount of teams that registered for the KCGI trading and all I could think of is how impressive it is that over 1500 teams each team consisting of different traders have signed up for something like that.
I might be making it more than it is, because I'm a big fan of trading in general, but I'm really glad trading is becoming more and more accessible.
There are tons of traders, the amount of team registered at event like that in my opinion have absolutely no correlation whatsoever.
But since there are so many exchanges and most of them have billions trading volume, I assume every country with access to internet and crypto at the very least have millions of traders in there.
In the rare case of this I prefer to consider trading volume as one of the factor to determine and usually at bull run the number of traders increase exponentially because it's interesting time to get in and make some quick bucks.