Use the table related to the size distribution of income to answer two questions. Share of Total Income Group 2017 Income Average Income Income Highest fifth Above $127,000 $221,800 51.4% Second fifth $78,000 - $127,000 99,000 23.0 Third fifth $47,000 - $78,000 61,600 14.3 Fourth fifth $25,000 - $47,000 35,400 8.2 Lowest fifth 0 - $25,000 13,300 3.1 According to the table, a. What is the average income in the United States? Instructions: Round your response to one decimal place. b. What percentage of the average income of people in the highest fifth would have to be taxed away to bring them down to that average