Lets keep our eye focused on the larger side of the pie, shall we...
You're comparing annual GDP to a monthly ballance of trade figure. Right now our annaul balance of trade deficit is approaching 6% of GDP. No country can operate with that kind of deficit for very long without serious economic consequences.
Our most recent monthly trade imbalance is $39 Billion. Extrapolated over 12 months would yield an imbalance of $468 Billion.
Divided by our $12 Trillion annual economy would give us 3.9%.
So the most recent government data that we have shows a current trade imbalance of less than 4% per year. Interestingly enough, our overall economy is growing somewhere between 3.3% and 6.5% per year...hardly a trend that is dangerous to us.