NIPA

This dataset consists of gross domestic product (a measure of the production of an economy) for the United States for each year between 1929 and 1998, inclusive. Each year's GDP is in billions of $. However, the $ is worth less today than it was in 1929, so we must adjust somehow for that. We do this using a price index (called the implicit price deflator) which is also available in the dataset. To put any year's GDP in 1992 dollars, we just take that year's GDP, multiply by 100, and divide by that year's implcit price deflator.