Yes, perhaps by reading the link.

"I should point out I am using numbers for the general population, which may not match the rate for scientists. [...] I also looked at CDC data – about 800,000 people in the US between 25 and 65 die each year [...] About 6% of the population work in the science field, which would be 192,000, or half that if you use a narrow definition of 3%, so close to the 73,000 figure I calculated the other way."

He also looks at how that compares with the individual institutions.

But yes, "show some rigor" indeed!