Most recently, github on
my blog posted statistics for 8 years. Our service is a little less than a year old and there are certainly not many users, but we crossed over 20K registrations (yes, quite a lot of juniors, but more on that later), plus we can tell not only about percentages, but also about the absolute number
Top 10 on GitHub:

Our ranking of programming languages ββ(count the number of submit).
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Language / Number of Submits
- C ++ 16800
- Java 5288
- C # 5109
- PHP 5053
- Python 3704
- Javascript 2524
- Ruby 654
- Bash 140
- Swift 137
- Go 120
So, with the naked eye one can see that the statistics is quite different (for example, we supported swift and go, although the gap to the leaders is quite high).
If you have opinions about the differences in ratings, then about this in the comments pliz.
upd 1:
We recently published
statistics on the popularity of languages ββon hackathons, we will write on this topic a little later, including about the online participants
upd 2:
I consider it important to note that
WillDev is not a HR service in the first place and we still see the creation and development of the steepest rating (if we are interested, we can post more statistics according to our formula) and the vacancy upgrade.