D on Tiobe Index

[bitwise via Digitalmars-d-announce]

On Thursday, 31 August 2017 at 16:37:35 UTC, SrMordred wrote:
> On Thursday, 31 August 2017 at 14:57:28 UTC, bitwise wrote:
>> https://www.tiobe.com/tiobe-index/d/
>
> What happened in 2009?

My first thought was that it was related to the D1 -> D2 
transition, but that wasn't it. Considering that I had to ask for 
the graph to be generated though, I figured that it may have been 
omitted on purpose due to low sample size, i.e. noisy results. I 
wouldn't worry too much about it.