From the article:
Internet freedom in Russia is under assault like never before, but RuNet users are showing a growing capacity for circumventing the government’s efforts to monitor and control their activity. Since mid-August 2013, the average daily number of Russian users of the Tor anonymity network, a free software for enabling online anonymity and resisting censorship, has multiplied fourfold. There are two major spikes in Russians’ Tor-use: the first occurred in late August 2013, and the most recent shift is an ongoing surge than began earlier this month.