According to paragraphs 2 and 3:...

the daily production of biofuels in 2005 barely reached 670,000 barrels.

the USA is responsible for 15% of the world's corn production.

the production of biofuel has dramatically decreased in the last few years.

soon, one percent of transport fuel in the world will be produced from agricultural crops.

nowadays, less than 4% of the world's fuel for transportation is not derived from oil.