4. How have the components of M1 relative to income (GDP) changed over time and why? Use the nominal levels of the components of M1 = currency (CURRSL) + demand deposits (DEMDEPSL) to construct a graph of their ratios to GDP (income) from 1947-present (use LINE 1 and LINE 2). Convert both ratios to a percent: (CURRSL/GDP) *100 and (DEMDEPSL/GDP) *100. [INSERT FIGURE HERE]