Autopilot will only be engaged on roads and under conditions that are favorable to autonomous driving, but fatal accidents tend to happen more under unfavorable conditions for human drivers. The non-Tesla numbers also include cars that are smaller, cheaper and less sophisticated, so much more likely to lead to fatal outcomes in crashes. So these numbers are heavily skewed in favor of Tesla. The proper comparison would be waymos performance and they’ve been without a fatal crash afaik. As an alternative you could pull the numbers for cars of similar build on similar roads for human drivers.