How common are apparitions of Mary and/or other Saints amongst non-Catholics?

How common are apparitions of Mary and/or other Saints amongst non-Catholics? There are many testimonies about these sorts of apparitions published on the web, but people who report these experiences typically had some connection with the Catholic faith prior to the apparition. But what about non-Catholics? What about Protestant Christians? What about Jews, Muslims, Buddhists, Hindus, atheists, etc.? For the purposes of comparison, stories of dreams, visions and encounters with Jesus among Muslims are [not](https://christianity.stackexchange.com/a/83548/50422) [uncommon](https://christianity.stackexchange.com/q/79535/50422) , but what about Mary and other Saints who passed away?