Until world population reached 3 billion in 1960 the yields of the four biological systems expanded more rapidly than population. (religion-online.org)
Some aspects of the economy can be expanding more quickly while others slowly or shrinking, to make up that average. (money.stackexchange.com)
The company recently has expanded more into this area, where food isn't a secondary attraction as it is in concessions. (fooddrink-magazine.com)