I know how this is going to sound, but bear with me.
Dr. G said 100% of accidental drownings are reported. How can this be possible? 100% ? There are so many missing people/children that I'm thinking couldn't some of them have drowned accidentally with the accompanying person panicking and dumping the body somewhere never to be found?
I
Think you answered your own question... she stated 100% of known cases, as in 100% of the statistical information in their database of drownings were reported immediately after found. "Never to be found" would not be considered a known case of drowning.