The most useless comparison. If you compare graphs like this created by fact checkers ideologically aligned with any of these parties you get completely different results.
And just by selectively choosing which claims you fact check, you can get whatever results you want for this graph. Just never publish any positive fact checks about one party and you can make them look as bad as you want.
“do not believe any statistic that you haven't forged yourself"
There is no such thing as an objective fact checker, so their very existance is absurd.