I've just read this
https://www.bbc.co.uk/news/health-67774902
On average I'd say I burp once a year. And then only a very small hiccupy type of burp. I thought that was normal, but maybe not! I don't experience any severe symptoms as described in the article, but I do get very bloated most evenings and unfortunately pass a lot of wind (although I've no idea what would be considered average?!)
Are there any other non burpers like me? Does it cause you any issues?