The history and stats page gives you details about your mining operation. Here you can monitor:
It gives you weekly, monthly and yearly income projections. All projections are based on your current mining tempo. FIAT approximations can fluctuate a lot as the Bitcoin price is changing on global markets all the time.
This section gives you very detailed stats for all your rigs & algorithms.
Here you can see a graph of your mining stats over time for every rig and every algorithm individually or for a group.
Payment history is a list of all mining payments.
Every statistic can be exported by clicking the export button.