Thanks for the New "Search Console" Rebranding, but Google, what I really want is data I can remotely believe
Below is a comparison of visits from Google Search to Moz.com (in Google Analytics) vs. search clicks from Google (in Google's new Search Console - formerly Webmaster Tools). As you can see, Search Console shows nothing close to reality in either trend or numbers.
I'm not sure why Google chooses to display information that we can easily prove wrong... It's hard to earn trust for their products this way.
ON EDIT: +Cyrus Shepard
noted that the dip in accuracy corresponds to our move to HTTPS. We looked at the HTTPS version of Moz's Search Console (aka Webmaster Tools) account, and if you add the data from both accounts up, you get closer to +Pedro Dias
's estimate of ~20% off (it's actually a bit more, but not as bad as this chart alone shows).