In fairness, they're nowhere near 50% success yet. Only a few startups have actually "succeeded" by PG's definition (i.e. gotten rich). That's largely because most of their fundees haven't had time to get there yet.

They do have enough horses still in the race and running strong that I wouldn't bet against them, but their success rate right now is a something around 5% right?

Success being defined as ... what exactly? By whom?