In the developed world it's on average 80 kilograms per person per year, which goes up to 120 in the United States and a bit lower in some other countries, but on average 80 kilograms per person per year.
In de ontwikkelde landen is dat gemiddeld 80 kg per persoon per jaar, wat zelfs toeneemt tot 120 in de Verenigde Staten en wat minder in sommige andere landen, maar gemiddeld 80 kg per persoon per jaar.