What each person produces

Only companies filing in dollars are ranked: a table that puts an unconverted euro figure beside a dollar one compares nothing. A high figure is not automatically a better business. Refiners and traders run enormous revenue through few people and keep little of it, which is exactly why gross profit and free cash flow per employee sit beside revenue here rather than behind it. EBITDA is operating income plus the depreciation and amortisation the cash flow statement reports, which understates any filer that amortises acquired intangibles outside that line, so it is the softest of the four.