source: Carpe Diem via BLS at 68
As the BLS report says (pages 66, 69):
The material well-being of families in the United States improved dramatically, as demonstrated by the change over time in the percentage of expenditures allocated for food, clothing, and housing. In 1901, the average U.S. family devoted 79.8 percent of its spending to these necessities, while families in New York City spent 80.3 percent, and families in Boston allocated 86.0 percent. By 2002-03, allocations on necessities had been reduced substantially, for U.S. families to 50.1 percent of spending, for New York City families to 56.7 percent, and for Boston families to 53.8 percent. . .Of course, most of the poor don't stay poor. And today's poor are better off than ever before. Not that the left ever will acknowledge the poverty reduction effect of free market capitalism.
In 2002-03, the average U.S. family could allocate 49.9 percent ($20,333) of total expenditures for a variety of discretionary consumer goods and services, while the average family in 1901 could allocate only 20.2 percent, or $155, for discretionary spending.