I've been checking friendly fire stats for Viet Nam since before you became a Communist. Depending on what sources you read; DOD, GAO, West Point Military History Series etc.; the percentages run between 11/2 to 12%. You also have to decide if you are going to count the number of deaths that were not combat related before you start throwing out numbers. Non-combat deaths by themselves ranged as high as 10,000 for the 1961-1975 time frame.

There are no "definitive" numbers for friendly fire since there are too many variables. This is something you would have known if you had engaged your brain before putting your mouth in motion

Just cutting and pasting from Wikipedia does not make you a scholar or even well informed. Do some leg work for a change; and see if you can come close to a correct answer.