<u>Answer:</u>
2000 to 2010
<u>Explanation:</u>
Deficit is when the money spent is <em>larger</em> than the money received.
For our graph, the period where <u>orange line is </u><u><em>above</em></u><u> the blue line</u>.
Looking at the whole graph, around 2006-07 to 2010, the <u><em>money spent is around 1.5 trillion USD (!) above money received.</em></u>
<em>So looking at the period 2000 - 2010</em><em>, the deficit will be the largest in this due to the BIG GAP (deficit) around 2006-07 - 2010 years.</em>
<u>Note:</u> The other periods does have deficit but the amount is not that much.