Back in September this year we announced the new Stats section, which shows stats for the evolution of the checked domains, based on daily snapshots automatically generated from the data in your reports.
Initially, the Stats feature was available only for Basic, Pro, and Enterprise users, but now Stats are available for all subscribed users, including users with a Micro subscription.
For a refresher of what’s included in the Stats and what insights you can get from its data, check out this blog post and the Stats documentation