The share of national income taken by workers was going up.
The national average income for families with children was $50,800.
In 1929, federal spending was 3 percent of national income.
By that time the national income will still be less than £2,000bn.
Within 5 years this tax will increase national income by £1.4bn.
Since 1997, public spending has gone up from 36% of national income to 48%.
National income, or its rate of growth, has most often been used in the West to indicate success.
Oil now accounts for just 8 percent of national income.
A country's military potential is also determined by the size and growth rate of its national income.
In the early 1970's the top 1% only owned 8% of the national income.
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