What is the fatality rate of Mount Everest?

Could you please elaborate on the fatality rate of Mount Everest? I'm curious to understand how many climbers have lost their lives attempting to reach the summit of this daunting peak. Is the rate increasing or decreasing over time? What are the primary causes of these fatalities? And are there any measures being taken to improve safety for climbers? Thank you for shedding some light on this topic.