The U.S., grappling with a stronger dollar and global economic weakness, was left with a negative trade balance of more than $735 billion in 2015, according to recent U.S. Census Bureau data cited by cost-estimating website HowMuch.net.

All told, the U.S. imported $2.2 trillion in goods last year, while exporting $1.5 trillion.

Read:U.S. trade gap in goods widens to 7-month high.