TIOBE February 2016.... 15 ?!

[Ola Fosheim Grøstad via Digitalmars-d]

On Wednesday, 3 February 2016 at 08:53:27 UTC, Ola Fosheim 
Grøstad wrote:
> enough volume to show up. "d programming language" is probably 
> only used by non-users, it shows a clear spike in october 2004, 
> july 2005, january 2007, july 2014, but a general falling 
> trend. While "dlang" is more stable.

The cause of the biggest spike of interest,  january 2007:

http://developers.slashdot.org/story/07/01/01/2041256/the-d-programming-language-version-10