[refurb]

They have?

https://acsjournals.onlinelibrary.wiley.com/doi/10.3322/caac...

Looks like they went from 400 to 500 then back to 450 since 1975. It's trending down.

And you'd need to correct for age distribution to make sure it's not just the population having older people and thus higher chance of cancer in a given year.

[tee_0]

What part of this document contradicts what I’ve said? The only chart that doesn’t start at 75 is cancer deaths, not incidence.

[refurb]

You said it "skyrocketed" since 1970. Unless it skyrocketed from '70 to '74 (which I doubt), the trend is not up, it's up then back down.