President Obama's birth certificate wasn't readily available, but since it's Tax Day, we did find his tax returns (minus social security numbers).

They show Obama and First Lady Michelle Obama reported $5.5 million in adjusted gross income in 2009, mostly on book sales. They paid nearly $1.8 million in taxes.

They gave more than $329,000 to charity, inlcuding donations to CARE and the United Negro College Fund. That's not counting the $1.4 million Nobel Prize, which the president also donated to charity.

And while we're being Tax Day numbers crunchers, here's an interactive graph of where all your hard-earned federal tax dollars go.