And even if we take only >2000 rated,
then it's 11%
Every ninth game! and it's within 1 minute bullet. What will be in 0+1?
In 0+1 this number increases very much, because in 1+0 you still have time to think in the opening.
In 0+1 I think this will be > 20% for >2000 rated.
But in common, this percentage for 0+1 is 50% at least. So every second game will finish (I say it using search with statistic) in 5 moves.