That's in the "Direct" section which has this footnote:

>From 2010 (when Amazon moved its headquarters to downtown Seattle) to 2017.

Some employees earn more than others, such as EVPs and upper management, but this number shouldn't seem surprising - lots of people at $300k and a few at $800k.

If there's a second HQ they can offer lower salaries compared to Seattle, then drive Seattle salaries down by threatening to move the HQ1 jobs to HQ2.

Think the table is listing figures since 2010 for the Direct column.