But the Stockholm Peace Research Institute estimates that in sub-Saharan Africa it has risen by almost a third over the same period.
The protest organizer, United for Peace and Justice, estimated the crowd at 500,000, rivaling a 1982 antinuclear rally in Central Park, and double the number it had predicted.
As many as 425 peace organizations are estimated to have existed in 1900, fully half of them in Scandinavia and most others in Germany, Britain, and the United States.
The Guardians of Peace stole an estimated 100 terabytes of data from Sony's servers, but the hack itself wasn't very sophisticated.
During Sudan's two decade long civil war that ended in 2005 with the signing of the Comprehensive Peace Agreement, it was estimated that only 14 per cent of students enrolled in primary school were girls.
But by Netanyahu's estimates, this is peace.
Before the signing of a peace pact in 1991, an estimated 3,000 people were killed in fighting for control of the business, which had attracted the attention of drug "cartels" as a possible means of laundering money.
By 16 March, when the first international peace conference took place, an estimated 2,000 5,000 people had been killed and 60,000 70,000 forced to flee.
The Maoist insurgency has killed an estimated 2,300 Nepalis since peace talks collapsed eight months ago.
On the other hand, when it comes to estimating the chances for peace, Romney's view just reflects what most Israelis and Palestinians think.
