GDP

Google:

Wikipedia:

FRED:

Personal Consumption Expenditures, Billions of Dollars, Seasonally Adjusted Annual Rate (PCEC)

Gross Private Domestic Investment, Billions of Dollars, Seasonally Adjusted Annual Rate (GPDI)

Net Exports of Goods and Services, Billions of Dollars, Seasonally Adjusted Annual Rate (NETEXP)

Government Consumption Expenditures and Gross Investment, Billions of Dollars, Seasonally Adjusted Annual Rate (GCE)


I added up the four components of GDP, showed em in blue. Made it a wide line.

On top of it I put GDP, narrow line, red.

Good match:

Graph #1: GDP (red) atop the Sum of Components of GDP (blue)

The four components:

Graph #2: The Four Components of GDP

Blue, consumption, is the biggest part. The government share is just about the same size as investment. The green one, net exports, is negative in recent years.

Rearranged and stacked:

Graph #3: The Four Components of GDP as Stacked Percentages of Total GDP

The lowest line, purple, is the government share of GDP. In the neighborhood of 20% but quite clearly declining since 1967. Since 1967 -- that surprised me.

From the purple up to the blue is personal consumption, the largest share of GDP. From the blue up to the red is investment, gross private domestic investment.

Topping us off at 100% of GDP is net exports. We have a trade deficit, so net exports is a negative value. In order to get the green line up to 100% I put a minus sign in front of it. From the green line down to the red is net exports. Or, from the green line up to the red for the first few years shown, when the trade balance was in our favor.