>Go 1.4 is released [0]
>10 December 2014
>Today we announce Go 1.4, the fifth major stable release of Go...
>The most notable new feature in this release is official support for Android. Using the support in the core and the libraries in the golang.org/x/mobile repository, it is now possible to write simple Android apps using only Go code. At this stage, the support libraries are _still nascent_ and _under heavy development_. Early adopters should expect a bumpy ride, but we welcome the community to get involved.
Emphasis mine.
I really don't think a beta feature that was released a month ago could have affected the statistics.