Liberal members of Congress have asserted that the U. S. government has been expending an increasing portion of the nation's resources on the military and intelligence agencies since 1960. The following table contains the outlays (in billions of dollars) for the Defense Department and associated intelligence agencies since 1960. The data are also given as a percentage of gross national product (% GNP).

a. Plot the defense expenditures time series data and describe any trends across the period from 1960 to 2012.
b. Plot the% GNP time series data and describe any trends across the period from 1960 to 2012.
c. Do the two time series have similar trends? Do either of the plots support the assertions by the liberal members of Congress?
d. What factors, domestic or international, do you think may have had an influence on your observed trends?

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8990, 333344454 1 161 5566 012 len ㅣ 9 2 8 1 0 1 2 1 9 7 2 68417 G-98455 odi-48 81 198 195 210 193 73 202 90 3A 199 73 998 201 202 202 2 345