1 min read
World population: 3.4 billion (it’s now 6.4 billion)
Average yearly wage in the US: $4,938
40% of women worked outside the home.
Life expectancy: 70.2 years (it’s now about 78)
A postage stamps cost 5 cents
Gallon of gas: 32 cents
McDonald’s hamburger: 15 cents
A movie ticket: $1.09
A gallon of milk: 99 cents.
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