This represents an average annual growth rate of more than 35% and a four-fold increase over a span of five years.

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Nasdaq is coming off an 86% rise in value in 1999 -- and a four-fold increase over the past four years.

CNN: Millennium Meltdown

According to projections by Century Link, by 2015, the world will see a four-fold increase in the amount of data being created and replicated.

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Scotland could see a four-fold increase in the number of cruise passengers visiting its ports over the next 20 years, according to an industry study.

BBC: Scottish cruise passengers could hit one million

That's close to a four-fold increase over the previous year, 2004.

NPR: Iran Most Active in Terrorism, Says State Dept.

Mr Corrigan's victory over the unions in the docks war led to a four-fold increase in productivity per worker at Patrick's freight terminals in Brisbane, Melbourne and Sydney, the three eastern ports that handle the bulk of Australia's trade.

ECONOMIST: Face value

Launched in 2006, the strategy has led to a four-to-six-fold increase in the provision of sterile injecting equipment and an increase in the number of people, mainly in drug services and prisons, being tested for the infection.

BBC: War on drugs 'driving hepatitis C pandemic'

Gestational diabetes - which affects four in 100 pregnancies - was associated with a two-fold increase in the risk of autism, while bleeding in pregnancy was alleged to carry an 81% increased risk.

BBC: Problem pregnancy 'autism risk'

They show for all the banks a combined net profit of JPY 1.76 trillion, a 2.2 fold increase over the previous year, the highest level in four years.

FORBES: Financial Performance of Six Big Banks

Wahid's presidency and the almost four-fold increase in seats to Pas signal that Islam is, more than ever, a force to be reckoned with in both Indonesia and Malaysia.

CNN: The Ties That Do Not Bind