(b) During the COVID-19 pandemic in 2020, the Fed increased the money supply dramatically. In 2021Q1, the money supply had reached $18.4 trillion, while real GDP was $19.1 trillion, GDP deflator was 1.15, and the interest rate was 0.8 percent. What was k in the U.S. in 2021Q1, How does the magnitude of this value compare with the 0.00276 2019Q4 value of k? Please round the answer to 5 decimal points and show your calculations.