““The share of income going to the rich remained remarkably constant from the mid-1940s through the 1970s and then began to escalate rapidly. For example, the top 5% of taxpayers accounted for 23.0% of total income in 1981 but 37.2% in 2005. The top 1% accounted for 10.0% of total income in 1981 but 21.8% in 2005; after declining gradually over most of the twentieth century, their share of the pie more than doubled in the course of a single generation.””