I'd actually be interested to see you quantify that, but I'm reviewing the timelines of Wars on Wikipedia at the moment, and from what I'm seeing, the "West", kind of a nebulous term - depending on where you draw the lines, was culprit to more wars. I'm a little lazy so I'm just keeping mental account.

I expect you're speaking in terms of qualitative violence?

You are reading a list that is eurocentric. Anyone with an interest in non-European history knows how sparse Wikipedia can be for their subject.

A great example is the Five Dynasties and Ten Kingdoms period. According to your list only a single war took place for nearly 80 years in china, until the Song dynasty, which formed and unified (most of) china without a single war, attacks Vietnan, whereas in China it's known as a period of endemic warfare until the Song reunified china through conquest. Compare that to a Viking raid on Lisbon that does get its own place on the list.