Is one declared emergency per 100,000 flights (6 emergencies declared in 580,000 revenue flights, according to the article) more or less than is usual/expected?<p>edit: I was able to find one very rough statistic "about 10,000,000 passenger flights per year" are managed by FAA, and "150 emergency events" are reported in a typical year. That's 1.5 emergencies per 100,000 flights, or fairly in line with what the post-MCAS-redesign 737 MAXs are running