Google has started rolling out the next generation of the Penguin webspam algorithm by the afternoon of May 22, 2013, and the rollout is now completed. About 2.3% of English US queries are affected to the degree that a regular user might notice. The change has also finished rolling out for other languages on world wide web.
The most important thing is the scope of this Google Penguin update varies by language, example: languages with more webspam will see more impact on it.
You can read more here on Matt Cutts Blog :