Swipe the daily overview to the left to get to analysis mode.
You'll get to the overview of the last 7 days. Swipe to the left again and enter the 14-day overview.
The dots show you where you are. Swipe left again and you'll get to your monthly overview and you'll even be able to see your quarterly overview!
Scroll down to see the graphs displaying past data!
The blue area shows your average amount of daily logs, your total amount of logs and how many points you've already collected.