The U.S. national debt topped a record $24.1 trillion. 

The amount of public debt in the country has doubled since 2009, from $11.9 trillion. Although the U.S. has the highest amount of debt in the world, it's often considered a strong investment.

But in recent months, it is climbing faster amid COVID-19 outbreak.

Here's how the figures have stacked up over the years.

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