Not really, I get a lot of my in depth SpaceX info and analysis from r/spacex (which is a pretty great little community, and one of the best places to track behind the scenes SpaceX stuff) and all I've picked up from there is "probably at least once".
It'll also depend on the difficulty of each orbit, rockets that reach higher and/or deliver payloads with more extreme orbital inclinations, experience more stress and are less likely to be reliable enough to be reused.
It'll also depend on the difficulty of each orbit, rockets that reach higher and/or deliver payloads with more extreme orbital inclinations, experience more stress and are less likely to be reliable enough to be reused.