Science Spending as a fraction of GDP

The National Science Foundation has an excellent statistics in the appendices to the 2008 Science and Engineering Indicators Report.

I used the excel versions of Tables 4-1, Gross domestic product and implicit price deflators: 1953–2007, and Table 4-32, Federal obligations for total research, by detailed S&E field: FY 1986–2007 to produce this chart:

To be clear, I took the constant 2000 dollar values for Physics and Astronomy and Physical Sciences spending from Table 4-32, and divided those into the constant dollars GDP number from Table 4-1.

Physical Sciences, Astronomy, and Physics spending as a fraction of GDP

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According the data, all Physical Science spending in 2005 is equal to Physics spending alone 20 years ago. Grim.