Gini score: 40.8
GDP 2007 (US$ billions): 13,751.4
Share of income or expenditure (%)
Poorest 10%: 1.9
Richest 10%: 29.9
Ratio of income or expenditure, share of top 10% to lowest 10%: 15.9
The share of income for the top percentile of Americans was 23.5% in 2007, the highest since 1928, according to Emmanuel Saez, a Berkeley economist who won the prestigious John Bates Clark Medal in April. Income for the top 0.01% hit a record-high 6.04%. And the recession may be exacerbating income inequality.