What are the statistics of plane crashes?
Assuming that you are referring only to “incidents resulting in the loss of the aeroplane” – the answer is negligible. Specifically, (civil) airworthiness regulations stipulate that ALL aircraft systems / components must be engineered such that the probability of a catastrophic failure of the said system / component, is equal to 1^10 (-9) per flying hour. Or alternatively, 1 in 1,000,000,000 per every hour you are airborne. Rigorous testing and maintenance requirements are put in place to satisfy that legal certification requirement. Obviously that doesn’t take into account incidents caused by pilot error, weather, combinations of both, etc – but if you compare the number of successful flights across the globe in one year, against the number of crashes throughout the same period – I would suggest that the probabilities are fairly low.