All the documents that you have saved are listed in the database mode. You can see the date, document file name, printer profile, ink usage statistics and cost of printing for every document. You can also add notes to the records, for further analysis.
Filtering control at the top right corner of the window allows you to pick a range of dates, so you can see the costs for a month or year.
Bottom panel shows the total amounts of printed documents, pages and accumulated printing costs. Use the File > Export menu to export these values into CSV format for further usage.