The bottom line of this Treasury research was that, on average, individuals’ income rose 24.1 percent from 1987 to 1996 and 41.0 percent from 1996 to 2005. (More detailed results from these studies are contained in Appendix E.) Those increases were almost two times and more than three times greater, respectively, than the official Census estimates for personal income increases of 12.7 and 12.4 percent for the same two time periods.