How do I read the machine's usage statistics?

To access statistics, make sure the appliance is in ready-for-coffee mode, then hold the Settings and Pre-Ground buttons pressed for at least 5 seconds. You can then press specific buttons to view data such as number of coffee beverages, number of steam deliveries, number of descaling processes, litres of water used, and number of filters installed. To exit statistics mode, press the Settings button again or wait 120 seconds without operating the machine. (Page 14-15)