2012 kz block from [#6140](https://trac.torproject.org/projects/tor/ticket/6140) and censorship-timeline.git. ([diff](https://trac.torproject.org/projects/tor/wiki/doc/MetricsTimeline?action=diff&version=84)) URL: https://trac.torproject.org/projects/tor/wiki/doc/MetricsTimeline?version=84