The Roaring Twenties

Population of United States in 1920: 105.7 million
... in 1930: 122.8 million¹

Census year in which urban population surpassed rural population for the first time in American history: 1920

Percentage of American homes with electricity in 1920: 35%
... in 1929: 68%
Percentage of American farms with electricity in 1920: 2%
... in 1929: 9%²

Wholesale price of wheat in 1920: $2.45 per bushel
... in 1921: $1.30 per bushel
... in 1932: 49 cents per bushel

Wholesale price of cotton in 1920: 42 cents per pound
... in 1921: 10 cents per pound
... in 1932: 5 cents per pound

Average per capita income for all Americans in 1929: $750
Average per capita income for American farmers in 1929: $273³

Dow Jones Industrial Average, November 1919: 119.62
Dow Jones Industrial Average, August 1921: 62.57
Dow Jones Industrial Average, September 1929: 381.17
Dow Jones Industrial Average, November 1929: 198.69
Dow Jones Industrial Average, July 1932: 41.22⁴

Year in which Dow Jones Industrial Average first surpassed the level of its 1929 peak: 1954⁵

Number of millionaires in America at time of stock market peak in 1929: 25,000- 35,000
Number of millionaires in America at time of stock market bottom in 1932: 5,000⁶

Percentage of Americans who owned stock at time of 1929 Crash: less than 1

1929 ratio of the incomes of the top 0.1 percent of Americans, to the incomes of the bottom 42 percent: 1:1⁷