This is interesting, but in my experience, you can't use this data to usefully extrapolate anything. Slightly different hardware, topology, OSes, drivers, system load, network "weather conditions", etc, can radically change the results.

My biggest UDP "surprise" was on a system using UDP but treating it as perfect, because the system designers knew that the hardware bus they were using was "100% reliable". And they were right--the hardware wasn't dropping anything. Too bad that the OSes on either end would discard UDP packets when they faced buffer pressure.