Although commercial colleges account for a relatively small portion of American students, their enrollments have surged in recent years.

Organized crime including carjackings and kidnappings has surged in recent years across Mexico.

Many of the first to suffer are the same lower-income people whose debt payments have surged in recent years.

Military spending has surged in recent years, with the official budget rising to $30 billion in 2005.

The demand for memory chips has surged in recent years, driven mostly by rising sales of personal computers.

As oil and gas prices have surged in recent years, moreover, many countries have forced companies to give up a bigger share of revenues.

Investment into China has surged in recent years with international investors looking to profit from China's booming economy.

The quality of nero d'avola has surged in recent years.

Health spending surged in recent years while the economy sputtered.

Anxiety about driving has surged in recent years because of carjackings and attacks on tourists at roadside rest areas.