This graph shows Gross Domestic Product (GDP), which is the market value of all goods and services produced in the U.S. in a year.  It is a measure of the size of the economy. The large dip is attributable to the recession.

US Gross Domestic Product (GDP)

• Vertical axis shows the the dollar value of the GDP.  Amounts should be multiplied by 1,000,000 to yield values in trillions.
• Horizontal axis shows calendar quarters beginning with the first quarter of 2002.

The data set is from:
U.S. Bureau of Economic Analysis – Gross Domestic Product (GDP)