That's likely true, but some languages use them way more than others. For example my native (slavic) tongue avoids puns almost completely, instead relying on other forms of humour. Your post actually prompted me to find a serious research about this topic, but unfortunately I couldn't find any so I have to rely on anecdotal evidence. If anyone knows any comparative study of joke types (especially puns) between cultures, I'm very interested.

I too would love to see this. I can declare positively French is pun-rich, my parents had a 1940s dictionary of argot, which was rich, inventive and almost like cockney rhyming slang.