UNITED STATES: Jeff Bezos has donated $100 million to the Obama Foundation

Size of economy. India: $3 trillion France: $2.9 trillion Italy: $2.1 trillion Canada: $1.9 trillion South Korea: $1.8 trillion Russia: $1.7 trillion California: $3 trillion

Size of economy. India: $3 trillion France: $2.9 trillion Italy: $2.1 trillion Canada: $1.9 trillion South Korea: $1.8 trillion Russia: $1.7 trillion California: $3 trillion

Size of economy Australia: $1.6 trillion Brazil: $1.4 trillion Spain: $1.4 trillion Mexico: $1.1 trillion Indonesia: $1.1 trillion Texas: $1.7 trillion

Size of economy. Australia: $1.6 trillion Brazil: $1.4 trillion Spain: $1.4 trillion Mexico: $1.1 trillion Indonesia: $1.1 trillion Texas: $1.7 trillion