Here is the answer. If the average adult produces $20,000 of output per year, the amount of global output that is lost annually as a result of adult deaths from secondhand smoke is 48 billion dollars. Consider this:
600,000 total deaths
165,000 children
435,000 adults
435,00 times $110,00 output per year = $47,859,000,000 or $48 billion.
