Table H-1. Income Limits for Each Fifth and Top 5 Percent of All Households: 1967 to 2009 (Households as of March of the following year.

Table H-1 Income Limits for Each Fifth and Top 5 percent of All Households: 1967 to 2009 is attached. The homework assignment is to use this table to calculate the percentage change in the shares of household income of quintiles between 1968 and 2008 and explain why it has changed in the manner it has. I need to have my answer posted by 12:00 p.m. CST on today 1/15/2011. Can you help?