Only two missions out of 400 were unsuccessful (CRS-7 and Starlink 9-3), plus one partial failure (CRS SpX-1 & OG2) and one anomaly before the launch (Amos-6):
Significantly increased launch cadence:
Only 34 missions out of 400 were launched on an expended booster:
Only 71 missions out of 400 were launched on a new booster:
Amos 6 was a hell of an anomaly. Shid blew itself up along with the pad.