Sure, Sophia, the more stats the better. For now, I mostly offer lessons of exactly one hour, so the number of lessons is the same as the number of hours, except for instant tutoring and trial sessions. If a student wants two or three hours straight, they're welcome to book consecutive lessons.
Sophia: If you really want to do yourself and the Portuguese learning community a favor, I once again recommend that you correct your profile to show your country of origin as Portugal (of course, you can keep Germany as your country of residence). If you don't do that, it makes it really hard for students seaching for a European Portuguese teacher to find you using the automatic search function -- I'm sure no one is searching specifically for a Portuguese teacher from Germany.