Careful - make sure you’re comparing apples to apples. These numbers are weekly active users. So actual desktop installs that are being used, which is what counts for convincing software developers to support you. A lot of Linux reports downloads, and/or include server installs.
Current data says it never was, unfortunately. I’d also take a bet that a lot of Linux distributions we think of as “popular” do not actually have as many desktop users as we think they do. See this post from the same thread for an educated guess at cross-distro analytics.
What this data basically shows us is how small unfortunately the desktop Linux world is, which begs the question how to grow 
Here’s a fresh graph with today’s data, if you’re curious.
