I understand that this is highly dependent on several factors - but as I make calculations with YTM, YTC, and YTW, it would be helpful to understand the (very general) likelihood of a bond being called.
Are these events commonplace, or are they more anecdotal ("yes, it does happen, but rarely")?
For example, with defaults, there is this table of historical default rates by credit rating. While this is by no means representative of any one company's default risk or a specific time period, it helps me get a starting point for the risk premium I would need to place on a bond.