U.S. consumers have the highest credit card debt in the developed world, according to a survey of more than 1,000 Americans.

The Consumer Federation of America (CFA) released the results of a study this week that said the average consumer is on track to spend $4,639 a year on credit card interest.

The study found that more than 10 million Americans hold credit cards with a total outstanding balance of more $1.6 trillion, making up about 15% of the total U.N. debt.

The average U.K. consumer has about $7,800 in credit card balances.

The survey, conducted by The Credit Card Association of America and the Credit Bureau, found that one-quarter of consumers had credit card accounts with credit card issuers that were not as secured as those of the U.C.

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The credit card companies that received the survey have not yet provided details on how they manage the debt.CFA President David Tovar said the survey results showed that the credit card industry is increasingly focusing on how to reduce the amount of debt consumers have.

The CFA said it will use the survey to inform policymakers about the need to invest in financial education and training for consumers.

The U.P.S., which owns the credit cards, Visa and Mastercard, said the data was gathered from consumer surveys and interviews.

“Credit card companies have a responsibility to be as responsible as possible with their customers,” a spokesperson said.

“Our customers deserve to know how their financial situation affects them, and our industry is taking this issue seriously.”CFA CEO Jim Smith said the credit unions are working with other industry groups to educate consumers.

“If consumers understand what they are being asked to pay for, and the risks associated with borrowing from credit card providers, they are more likely to make informed decisions and save for retirement,” Smith said in a statement.

The CFCA has urged all credit card firms to improve their security measures.

The group has called for the credit union industry to include an electronic card check-in system to verify a consumer’s eligibility.

The bureau says that in the past 10 years, credit card lenders have increased the percentage of their revenue they earn from customers who hold credit card cards by more than 50%.

The bureau says there is an urgent need to increase the percentage earned from customers with credit cards to support the nation’s aging population and reduce the debt burden on the credit system.

The report says credit card rates have increased from about 0.2% in 2005 to 2.9% in 2011.

It also found that consumer spending on credit cards has grown faster than consumer spending in the U,CFA said.