Off-peak pricing is normally around half as much as on-peak, but peak pricing can be as much as 10 times higher than off-peak in some parts of the country.

ENGADGET: Ford teams up with Eaton, Whirlpool and SunPower to create MyEnergi Lifestyle, hopes to reduce everyone's CO2 footprint

Sharp a three-and-a-half-billion-year-old peak in the middle of the crater, with layered deposits like a textbook on Martian prehistory.

NEWYORKER: The Martian Chroniclers

Yields on American ten-year Treasuries jumped more than half a percentage point to 3.5%, a six-month peak.

ECONOMIST: Get ready for more volatility in government bonds

All three companies are selling for about half their peak prices during the last up-cycle.

FORBES: Roughneck stocks

Regulated fares, which include season tickets and off-peak intercity journeys, make up half of all fares.

BBC: Rail commuters face 6.5% fare rise

America's financial-services firms have shed almost half a million jobs since the peak in December 2006, more than half of them in the past seven months.

ECONOMIST: Rebuilding the banks

Beyonce's recent half-time performance was seen by 108 million people in America alone, with the peak audience of 164.1 million for the match itself.

BBC: Grammys attracts second biggest audience in 20 years

By 2009, the deficit is projected to be cut by more than half from its projected peak to just 1.4 percent of GDP, well below the 40-year historical average.

WHITEHOUSE: Testimony of Director Bolten

The FARC has shrunk to less than half its 2001 peak of 20, 000 fighters and has lost several of its leaders (a dozen mid-level commanders were killed in 2009).

ECONOMIST: ?lvaro Uribe's Colombia